Lambertus Hesselink

All Publications

• Impedance matching in optically induced dielectrophoresis: Effect of medium conductivity on trapping force. Applied physics letters Zaman, M. A., Wu, M., Ren, W., Hesselink, L. 2024; 125 (5): 051108

  Abstract

  An impedance analysis for optically induced dielectrophoresis is presented. A circuit model is developed for this purpose. The model parameters are fully defined in terms of the geometrical and material properties of the system. It is shown that trapping force can only be generated when the material properties follow certain impedance matching conditions. The impedance match factor is introduced to succinctly quantify the phenomenon. It is used to calculate bounds on the allowed electrical conductivity of the suspension medium. Results from the proposed model are found to be in good agreement with full-wave numerical simulations. By computing the acceptable set of material parameters with little computational cost, the presented analysis can streamline ODEP system design for various applications.

  View details for DOI 10.1063/5.0223354

  View details for PubMedID 39100735

  View details for PubMedCentralID PMC11296733

• Dielectrophoretic bead-droplet reactor for solid-phase synthesis. Nature communications Padhy, P., Zaman, M. A., Jensen, M. A., Cheng, Y. T., Huang, Y., Wu, M., Galambos, L., Davis, R. W., Hesselink, L. 2024; 15 (1): 6159

  Abstract

  Solid-phase synthesis underpins many advances in synthetic and combinatorial chemistry, biology, and material science. The immobilization of a reacting species on the solid support makes interfacing of reagents an important challenge in this approach. In traditional synthesis columns, this leads to reaction errors that limit the product yield and necessitates excess consumption of the mobile reagent phase. Although droplet microfluidics can mitigate these problems, its adoption is fundamentally limited by the inability to controllably interface microbeads and reagent droplets. Here, we introduce Dielectrophoretic Bead-Droplet Reactor as a physical method to implement solid-phase synthesis on individual functionalized microbeads by encapsulating and ejecting them from microdroplets by tuning the supply voltage. Proof-of-concept demonstration of the enzymatic coupling of fluorescently labeled nucleotides onto the bead using this reactor yielded a 3.2-fold higher fidelity over columns through precise interfacing of individual microreactors and beads. Our work combines microparticle manipulation and droplet microfluidics to address a long-standing problem in solid-phase synthesis with potentially wide-ranging implications.

  View details for DOI 10.1038/s41467-024-49284-z

  View details for PubMedID 39039069

  View details for PubMedCentralID PMC11263596

• Spectral tweezers: Single sample spectroscopy using optoelectronic tweezers. Applied physics letters Zaman, M. A., Wu, M., Ren, W., Jensen, M. A., Davis, R. W., Hesselink, L. 2024; 124 (7): 071104

  Abstract

  A scheme that combines optoelectronic tweezers (OET) with spectroscopic analysis is presented. Referred to as spectral tweezers, the approach uses a single focused light beam that acts both as the trapping beam for OET and the probe beam for spectroscopy. Having simultaneous manipulation and spectral characterization ability, the method is used to isolate single micro-samples from clusters and perform spectral measurements. Experimental results show that a characteristic spectral signature can be obtained for a given sample. The proposed approach can be easily integrated into the optical setups used for conventional OETs with only a few additional optical components, making it a convenient tool for bio-analytical applications.

  View details for DOI 10.1063/5.0191871

  View details for PubMedID 38356894

  View details for PubMedCentralID PMC10864034

• Microparticle electrical conductivity measurement using optoelectronic tweezers. Journal of applied physics Ren, W., Zaman, M. A., Wu, M., Jensen, M. A., Davis, R. W., Hesselink, L. 2023; 134 (11): 113104

  Abstract

  When it comes to simulate or calculate an optoelectronic tweezer (OET) response for a microparticle suspended in a given medium, a precise electrical conductivity (later referred to as conductivity) value for the microparticle is critical. However, there are not well-established measurements or well-referenced values for microparticle conductivities in the OET realm. Thus, we report a method based on measuring the escape velocity of a microparticle with a standard OET system to calculate its conductivity. A widely used 6mum polystyrene bead (PSB) is used for the study. The conductivity values are found to be invariant around 2*10-3S/m across multiple different aqueous media, which helps clarify the ambiguity in the usage of PSB conductivity. Our convenient approach could principally be applied for the measurement of multiple unknown OET-relevant material properties of microparticle-medium systems with various OET responses, which can be beneficial to carry out more accurate characterization in relevant fields.

  View details for DOI 10.1063/5.0169565

  View details for PubMedID 37736285

• Resolution improvement of optoelectronic tweezers using patterned electrodes. Applied physics letters Zaman, M. A., Wu, M., Ren, W., Jensen, M. A., Davis, R. W., Hesselink, L. 2023; 123 (4): 041104

  Abstract

  An optoelectronic tweezer (OET) device is presented that exhibits improved trapping resolution for a given optical spot size. The scheme utilizes a pair of patterned physical electrodes to produce an asymmetric electric field gradient. This, in turn, generates an azimuthal force component in addition to the conventional radial gradient force. Stable force equilibrium is achieved along a pair of antipodal points around the optical beam. Unlike conventional OETs where trapping can occur at any point around the beam perimeter, the proposed scheme improves the resolution by limiting trapping to two points. The working principle is analyzed by performing numerical analysis of the electromagnetic fields and corresponding forces. Experimental results are presented that show the trapping and manipulation of micro-particles using the proposed device.

  View details for DOI 10.1063/5.0160939

  View details for PubMedID 37502178

  View details for PubMedCentralID PMC10371355

• Topological visualization of the plasmonic resonance of a nano C-aperture. Applied physics letters Zaman, M. A., Ren, W., Wu, M., Padhy, P., Hesselink, L. 2023; 122 (8): 081107

  Abstract

  The plasmonic response of a nano C-aperture is analyzed using the Vector Field Topology (VFT) visualization technique. The electrical currents that are induced on the metal surfaces when the C-aperture is excited by light is calculated for various wavelengths. The topology of this two-dimensional current density vector is analyzed using VFT. The plasmonic resonance condition is found to coincide with a distinct shift in the topology which leads to increased current circulation. A physical explanation of the phenomenon is discussed. Numerical results are presented to justify the claims. The analyses suggest that VFT can be a powerful tool for studying the physical mechanics of nano-photonic structures.

  View details for DOI 10.1063/5.0143309

  View details for PubMedID 36846092

• Controlled Transport of Individual Microparticles Using Dielectrophoresis. Langmuir : the ACS journal of surfaces and colloids Zaman, M. A., Padhy, P., Wu, M., Ren, W., Jensen, M. A., Davis, R. W., Hesselink, L. 2022

  Abstract

  A dielectrophoretic device employing a planar array of microelectrodes is designed for controlled transport of individual microparticles. By exciting the electrodes in sequence, a moving dielectrophoretic force is created that can drag a particle across the electrodes in a straight line. The electrode shapes are designed to counter any lateral drift of the trapped particle during transport. This facilitates single particle transport by creating a narrow two-dimensional corridor for the moving dielectrophoretic force to operate on. The design and analysis processes are discussed in detail. Numerical simulations are performed to calculate the electromagnetic field distribution and the generated dielectrophoretic force near the electrodes. The Langevin equation is used for analyzing the trajectory of a microparticle under the influence of the external forces. The simulations show how the designed electrode geometry produces the necessary lateral confinement required for successful particle transport. Finally, experimental results are presented showing controlled bidirectional linear transport of single polystyrene beads of radius 10 and 5 μm for a distances 840 and 1100 μm, respectively. The capabilities of the proposed platform make it suitable for micro total analysis systems (μTAS) and lab-on-a-chip (LOC) applications.

  View details for DOI 10.1021/acs.langmuir.2c02235

  View details for PubMedID 36541659

• Plasmonic Response of Nano-C-apertures: Polarization Dependent Field Enhancement and Circuit Model PLASMONICS Zaman, M., Hesselink, L. 2022

  View details for DOI 10.1007/s11468-022-01735-3

  View details for Web of Science ID 000912587600001

• Dynamically controllable plasmonic tweezers using C-shaped nano-engravings. Applied physics letters Zaman, M. A., Hesselink, L. 2022; 121 (18): 181108

  Abstract

  A near-field optical trapping scheme using plasmonic C-shaped nano-engraving is presented. Utilizing the polarization sensitivity of the C-structure, a mechanism is proposed for dynamically controlling the electric field, the associated trapping force, and the plasmonic heating. Electromagnetic analysis and particle dynamics simulations are performed to verify the viability of the approach. The designed structure is fabricated and experimentally tested. Polarization control of the excitation light is achieved through the use of a half-wave plate. Experimental results are presented that show the functioning implementation of the dynamically adjustable plasmonic tweezers. The dynamic controllability can allow trapping to be maintained with lower field strengths, which reduces photo-thermal effects. Thus, the probability of thermal damage can be reduced when handling sensitive specimens.

  View details for DOI 10.1063/5.0123268

  View details for PubMedID 36340998

• Statistical optics modeling of dark-field scattering in X-ray grating interferometers: Part 2. Simulation OPTICS EXPRESS Wilde, J. P., Hesselink, L. 2021; 29 (25): 40917-40933

  View details for DOI 10.1364/OE.447798

  View details for Web of Science ID 000726115900020

• Statistical optics modeling of dark-field scattering in X-ray grating interferometers: Part 1. Theory OPTICS EXPRESS Wilde, J. P., Hesselink, L. 2021; 29 (25): 40891-40916

  View details for DOI 10.1364/OE.447794

  View details for Web of Science ID 000726115900019

• Modeling Brownian Microparticle Trajectories in Lab-on-a-Chip Devices with Time Varying Dielectrophoretic or Optical Forces. Micromachines Zaman, M. A., Wu, M., Padhy, P., Jensen, M. A., Hesselink, L., Davis, R. W. 2021; 12 (10)

  Abstract

  Lab-on-a-chip (LOC) devices capable of manipulating micro/nano-sized samples have spurred advances in biotechnology and chemistry. Designing and analyzing new and more advanced LOCs require accurate modeling and simulation of sample/particle dynamics inside such devices. In this work, we present a generalized computational physics model to simulate particle/sample trajectories under the influence of dielectrophoretic or optical forces inside LOC devices. The model takes into account time varying applied forces, Brownian motion, fluid flow, collision mechanics, and hindered diffusion caused by hydrodynamic interactions. We develop a numerical solver incorporating the aforementioned physics and use it to simulate two example cases: first, an optical trapping experiment, and second, a dielectrophoretic cell sorter device. In both cases, the numerical results are found to be consistent with experimental observations, thus proving the generality of the model. The numerical solver can simulate time evolution of the positions and velocities of an arbitrarily large number of particles simultaneously. This allows us to characterize and optimize a wide range of LOCs. The developed numerical solver is made freely available through a GitHub repository so that researchers can use it to develop and simulate new designs.

  View details for DOI 10.3390/mi12101265

  View details for PubMedID 34683316

• Microparticle transport along a planar electrode array using moving dielectrophoresis. Journal of applied physics Zaman, M. A., Padhy, P., Ren, W., Wu, M., Hesselink, L. 2021; 130 (3): 034902

  Abstract

  We present a device that can achieve controlled transport of colloidal microparticles using an array of micro-electrodes. By exciting the micro-electrodes in regular sequence with an AC voltage, a time-varying moving dielectrophoretic force-field is created. This force propels colloidal microparticles along the electrode array. Using this method, we demonstrate bidirectional transport of polystyrene micro-spheres. Electromagnetic simulation of the device is performed, and the dielectrophoretic force profile around the electrode array is mapped. We develop a Brownian dynamics model of the trajectory of a particle under the influence of the time-varying force-field. Numerical and experimental results showing controlled particle transport are presented. The numerical model is found to be in good agreement with experimental data. The developed numerical framework can be useful in designing and modeling lab-on-a-chip devices that employ external non-contact forces for micro-/nanoparticle manipulation.

  View details for DOI 10.1063/5.0049126

  View details for PubMedID 34334807

• Dynamically controlled dielectrophoresis using resonant tuning. Electrophoresis Padhy, P., Zaman, M. A., Jensen, M. A., Hesselink, L. 2021

  Abstract

  Electrically polarizable micro and nanoparticles and droplets can be trapped using the gradient electric field of electrodes. But the spatial profile of the resultant dielectrophoretic force is fixed once the electrode structure is defined. To change the force profile, entire complex lab-on-a-chip systems must be re-fabricated with modified electrode structures. To overcome this problem, we propose an approach for the dynamic control of the spatial profile of the dielectrophoretic force by interfacing the trap electrodes with a resistor and an inductor to form a resonant RLC circuit. Using a dielectrophoretically trapped water droplet suspended in silicone oil, we show that the resonator amplitude, detuning and linewidth can be continuously varied by changing the supply voltage, supply frequency and the circuit resistance to obtain the desired trap depth, range, and stiffness. We show that by proper tuning of the resonator the trap range can be extended without increasing the supply voltage, thus preventing sensitive samples from exposure to high electric fields at the stable trapping position. Such unprecedented dynamic control of dielectrophoretic forces opens avenues for the tunable active manipulation of sensitive biological and biochemical specimen in droplet microfluidic devices used for single cell and biochemical reactionanalysis. This article is protected by copyright. All rights reserved.

  View details for DOI 10.1002/elps.202000328

  View details for PubMedID 33599974

• iLabs as an online laboratory platform: A case study at Stanford University during the COVID-19 Pandemic Zaman, M., Neustock, L., Hesselink, L., Klinger, T., Kollmitzer, C., Pester, A. IEEE. 2021: 1621-1629

  View details for DOI 10.1109/EDUCON46332.2021.9454028

  View details for Web of Science ID 000689064100242

• Automatic Generation and Easy Deployment of Digitized Laboratories IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS Torre, L., Neustock, L., Herring, G. K., Chacon, J., Clemente, F., Hesselink, L. 2020; 16 (12): 7328–37

  View details for DOI 10.1109/TII.2020.2977113

  View details for Web of Science ID 000572631900010

• Optoelectronic tweezers with a non-uniform background field APPLIED PHYSICS LETTERS Zaman, M., Padhy, P., Cheng, Y., Galambos, L., Hesselink, L. 2020; 117 (17)

  View details for DOI 10.1063/5.0020446

  View details for Web of Science ID 000588490800002

• Construction and validation of UV-C decontamination cabinets for filtering facepiece respirators APPLIED OPTICS Purschke, M., Elsamaloty, M., Wilde, J. P., Starr, N., Anderson, R., Farinelli, W. A., Sakamoto, F. H., Tung, M., Tam, J., Hesselink, L., Baer, T. M. 2020; 59 (25): 7585–95

  Abstract

  We present evidence-based design principles for three different UV-C based decontamination systems for N95 filtering facepiece respirators (FFRs) within the context of the SARS-CoV-2 outbreak of 2019-2020. The approaches used here were created with consideration for the needs of low- and middle-income countries (LMICs) and other under-resourced facilities. As such, a particular emphasis is placed on providing cost-effective solutions that can be implemented in short order using generally available components and subsystems. We discuss three optical designs for decontamination chambers, describe experiments verifying design parameters, validate the efficacy of the decontamination for two commonly used N95 FFRs (3M, #1860 and Gerson #1730), and run mechanical and filtration tests that support FFR reuse for at least five decontamination cycles.

  View details for DOI 10.1364/AO.401602

  View details for Web of Science ID 000571482900014

  View details for PubMedID 32902458

• Modeling UV-C irradiation chambers for mask decontamination using Zemax OpticStudio APPLIED OPTICS Wilde, J. P., Baer, T. M., Hesselink, L. 2020; 59 (25): 7596–7605

  Abstract

  Ultraviolet decontamination of personal protective equipment, particularly masks, is important in situations where mask reuse is practiced. To assist in the development of UV-C decontamination chambers, we have constructed ray tracing models in Zemax OpticStudio v20.1 for two distinct geometries, namely, a rectangular cabinet and a cylindrical can. These models provide irradiance distributions that can be used for comparison with experiment, as well as to predict local irradiance variation over the surface of a mask. In this paper we describe the model details, including: (1) a mask object in CAD format; (2) our assumptions for modeling surface properties; (3) the use of polygon object detectors for local irradiance analysis; and (4) experimental results that compare favorably to the simulations.

  View details for DOI 10.1364/AO.402603

  View details for Web of Science ID 000571482900015

  View details for PubMedID 32902459

• Modeling of an X-ray grating-based imaging interferometer using ray tracing OPTICS EXPRESS Wilde, J. P., Hesselink, L. 2020; 28 (17): 24657–81

  Abstract

  X-ray imaging by means of a grating-based Talbot-Lau interferometer has become an important tool for a wide variety of application areas such as security, medical and materials analysis. Imaging modalities include attenuation, differential phase contrast, and visibility contrast (or so-called dark field). We have developed a novel modeling approach based on ray tracing with commercially available software (Zemax OpticStudio) that yields image projections for all three modalities. The results compare favorably with experimental findings. Our polychromatic ray-based model accommodates realistic 3-D CAD objects with tailored materials properties and also allows for both surface and bulk scattering. As such, the model can simulate imaging of complicated objects as well as assist in a physical understanding of experimental projection details.

  View details for DOI 10.1364/OE.400640

  View details for Web of Science ID 000560936200027

  View details for PubMedID 32907002

• Solenoidal optical forces from a plasmonic Archimedean spiral PHYSICAL REVIEW A Zaman, M., Padhy, P., Hesselink, L. 2019; 100 (1)

  View details for DOI 10.1103/PhysRevA.100.013857

  View details for Web of Science ID 000478039900009

• Fokker-Planck analysis of optical near-field traps. Scientific reports Zaman, M. A., Padhy, P., Hesselink, L. 2019; 9 (1): 9557

  Abstract

  The motion of a nanoparticle in the vicinity of a near-field optical trap is modeled using the Fokker-Planck equation. A plasmonic C-shaped engraving on a gold film is considered as the optical trap. The time evolution of the position probability density of the nanoparticle is calculated to analyze the trapping dynamics. A spatially varying diffusion tensor is used in the formulation to take into account the hydrodynamic interactions. The steady-state position distribution obtained from the Fokker-Planck equation is compared with experimental results and found to be in good agreement. Computational cost of the proposed method is compared with the conventionally used Langevin equation based approach. The proposed method is found to be computationally efficient (requiring 35 times less computation time) and scalable to more complex lab-on-a-chip systems.

  View details for DOI 10.1038/s41598-019-45609-x

  View details for PubMedID 31266994

• Solenoidal optical forces from a plasmonic Archimedean spiral. Physical review. A Zaman, M. A., Padhy, P., Hesselink, L. 2019; 100 (1)

  Abstract

  The optical forces generated by a right-handed plasmonic Archimedean spiral (PAS) have been mapped and analyzed. By changing the handedness of the circularly polarized excitation, the structure can switch from a trapping force profile to a rotating force profile. The Helmholtz-Hodge decomposition method has been used to separate the solenoidal component and the conservative component of the force and quantify their relative magnitude. It is shown that the for right-hand circularly polarized excitation, the PAS creates a significant amount of solenoidal forces. Using the decomposed force components, an intuitive explanation of the motion of micro- and nanoparticles in the force field is presented. Vector field topology is used to visualize the force components. The analysis is found to be consistent with numerical and experimental results. Due to the intuitive nature of the analysis, it can be used in the initial design process of complex laboratory-on-a-chip systems where a rigorous analysis is computationally expensive.

  View details for DOI 10.1103/physreva.100.013857

  View details for PubMedID 33981919

  View details for PubMedCentralID PMC8112602

• In-plane near-field optical barrier on a chip OPTICS LETTERS Padhy, P., Zaman, M., Hesselink, L. 2019; 44 (8): 2061–64

  Abstract

  Nanoparticles trapped on resonant near-field structures engraved on a metallic substrate experience forces due to the engravings, as well as the image-like interaction with the substrate. In the case of normally incident optical excitation, the force due to the substrate is solely perpendicular to its surface. Numerical simulations are presented to demonstrate that under the combined influence of the aforementioned forces, a plasmonic nanoparticle can be repelled from the engraving along the substrate, while attracting it towards the substrate along its normal. This behavior can be achieved over a range of excitation wavelengths of the short wavelength mode of the coupled particle-substrate-trap system. To the best of our knowledge, this is the first illustration of an in-plane near-field optical barrier on a chip. The barrier is stable against resistive heating of the nanoparticle, as well as the induced non-isothermal flow. The wavelength-dependent switch between the proposed in-plane potential barrier and the stable potential well can pave the way for the gated transport of single nanoparticles, while holding them bound to the chip.

  View details for DOI 10.1364/OL.44.002061

  View details for Web of Science ID 000464601900046

  View details for PubMedID 30985811

• Near-field optical trapping in a non-conservative force field. Scientific reports Zaman, M. A., Padhy, P., Hesselink, L. 2019; 9 (1): 649

  Abstract

  The force-field generated by a near-field optical trap is analyzed. A C-shaped engraving on a gold film is considered as the trap. By separating out the conservative component and the solenoidal component of the force-field using Helmholtz-Hodge decomposition, it was found that the force is non-conservative. Conventional method of calculating the optical potential from the force-field is shown to be inaccurate when the trapping force is not purely conservative. An alternative method is presented to accurately estimate the potential. The positional statistics of a trapped nanoparticle in this non-conservative field is calculated. A model is proposed that relates the position distribution to the conservative component of the force. The model is found to be consistent with numerical and experimental results. In order to show the generality of the approach, the same analysis is repeated for a plasmonic trap consisting of a gold nanopillar. Similar consistency is observed for this structure as well.

  View details for PubMedID 30679539

• Near-field optical trapping in a non-conservative force field SCIENTIFIC REPORTS Zaman, M., Padhy, P., Hesselink, L. 2019; 9

  View details for DOI 10.1038/s41598-018-36653-0

  View details for Web of Science ID 000456554600088

• Inverse Design Tool for Ion Optical Devices using the Adjoint Variable Method. Scientific reports Neustock, L. T., Hansen, P. C., Russell, Z. E., Hesselink, L. n. 2019; 9 (1): 11031

  Abstract

  We present a computer-aided design tool for ion optical devices using the adjoint variable method. Numerical methods have been essential for the development of ion optical devices such as electron microscopes and mass spectrometers. Yet, the detailed computational analysis and optimization of ion optical devices is still onerous, since the governing equations of charged particle optics cannot be solved in closed form. Here, we show how to employ the adjoint variable method on the finite-element method and Störmer-Verlet method for electrostatic charged particle devices. This method allows for a full sensitivity analysis of ion optical devices, providing a quantitative measure of the effects of design parameters to device performance, at near constant computational cost with respect to the number of parameters. To demonstrate this, we perform such a sensitivity analysis for different freeform N-element Einzel lens systems including designs with over 13,000 parameters. We further show the optimization of the spot size of such lenses using a gradient-based method in combination with the adjoint variable method. The computational efficiency of the method facilitates the optimization of shapes and applied voltages of all surfaces of the device.

  View details for DOI 10.1038/s41598-019-47408-w

  View details for PubMedID 31363126

• Extracting the potential-well of a near-field optical trap using the Helmholtz-Hodge decomposition APPLIED PHYSICS LETTERS Zaman, M., Padhy, P., Hansen, P. C., Hesselink, L. 2018; 112 (9)

  View details for DOI 10.1063/1.5016810

  View details for Web of Science ID 000427022500003

• Learning from the Unexpected: Statistics and Uncertainty in Massively Scalable Online Laboratories (MSOL) Herring, G. K., Neustock, L., Hesselink, L., IEEE IEEE. 2018: 815–24

  View details for Web of Science ID 000434866100117

• Remote Experimentation with Massively Scalable Online Laboratories Online Engineering & Internet of Things Neustock, L. T., Herring, G. K., Hesselink, L. Springer. 2018

  View details for DOI 10.1007/978-3-319-64352-6_24

• Immersive Peer Education: Virtual Interactive Scalable Online Notebooks for Science (VISONS) Neustock, L., Herring, G. K., Hesselink, L., IEEE IEEE. 2018: 805–14

  View details for Web of Science ID 000434866100116

• A semi-analytical model of a near-field optical trapping potential well JOURNAL OF APPLIED PHYSICS Zaman, M., Padhy, P., Hesselink, L. 2017; 122 (16)

  View details for DOI 10.1063/1.5000269

  View details for Web of Science ID 000414225500001

• On the substrate contribution to the back action trapping of plasmonic nanoparticles on resonant near-field traps in plasmonic films OPTICS EXPRESS Padhy, P., Zaman, M., Hansen, P., Hesselink, L. 2017; 25 (21): 26198–214

  Abstract

  Nanoparticles trapped on resonant near-field apertures/engravings carved in plasmonic films experience optical forces due to the steep intensity gradient field of the aperture/engraving as well as the image like interaction with the substrate. For non-resonant nanoparticles the contribution of the substrate interaction to the trapping force in the vicinity of the trap (aperture/engraving) mode is negligible. But, in the case of plasmonic nanoparticles, the contribution of the substrate interaction to the low frequency stable trapping mode of the coupled particle-trap system increases as their resonance is tuned to the trap resonance. The strength of the substrate interaction depends on the height of the nanoparticle above the substrate. As a result, a difference in back action mechanism arises for nanoparticle displacements perpendicular to the substrate and along it. For nanoparticle displacements perpendicular to the substrate, the self induced back action component of the trap force arises due to changing interaction with the substrate as well as the trap. On the other hand, for displacements along the substrate, it arises solely due to the changing interaction with the trap. This additional contribution of the substrate leads to more pronounced back action. Numerical simulation results are presented to illustrate these effects using a bowtie engraving as the near-field trap and a nanorod as the trapped plasmonic nanoparticle. The substrate's role may be important in manipulation of plasmonic nanoparticles between successive traps of on-chip optical conveyor belts, because they have to traverse over regions of bare substrate while being handed off between these traps.

  View details for DOI 10.1364/OE.25.026198

  View details for Web of Science ID 000413103300123

  View details for PubMedID 29041280

• Capturing range of a near-field optical trap PHYSICAL REVIEW A Zaman, M., Padhy, P., Hesselink, L. 2017; 96 (4)

  View details for DOI 10.1103/PhysRevA.96.043825

  View details for Web of Science ID 000412746000012

• Dielectrophoresis-assisted plasmonic trapping of dielectric nanoparticles PHYSICAL REVIEW A Zaman, M. A., Padhy, P., Hansen, P. C., Hesselink, L. 2017; 95 (2)

  View details for DOI 10.1103/PhysRevA.95.023840

  View details for Web of Science ID 000395979500010

• High-fidelity simulation of a standing-wave thermoacoustic-piezoelectric engine JOURNAL OF FLUID MECHANICS Lin, J., Scalo, C., Hesselink, L. 2016; 808: 19-60

  View details for DOI 10.1017/jfm.2016.609

  View details for Web of Science ID 000387140500006

• Adjoint method for estimating Jiles-Atherton hysteresis model parameters JOURNAL OF APPLIED PHYSICS Zaman, M. A., Hansen, P. C., Neustock, L. T., Padhy, P., Hesselink, L. 2016; 120 (9)

  View details for DOI 10.1063/1.4962153

  View details for Web of Science ID 000383978100014

• Effect of Substrate in Optical Trapping of Metallic Nanoparticle on Nano Apertures and Engravings Padhy, P., Hansen, P., Ryan, J., Zaman, M., Huang, T. W., Hesselink, L., IEEE IEEE. 2016

  View details for Web of Science ID 000391286402115

• Accurate adjoint design sensitivities for nano metal optics OPTICS EXPRESS Hansen, P., Hesselink, L. 2015; 23 (18): 23899-23923

  Abstract

  We present a method for obtaining accurate numerical design sensitivities for metal-optical nanostructures. Adjoint design sensitivity analysis, long used in fluid mechanics and mechanical engineering for both optimization and structural analysis, is beginning to be used for nano-optics design, but it fails for sharp-cornered metal structures because the numerical error in electromagnetic simulations of metal structures is highest at sharp corners. These locations feature strong field enhancement and contribute strongly to design sensitivities. By using high-accuracy FEM calculations and rounding sharp features to a finite radius of curvature we obtain highly-accurate design sensitivities for 3D metal devices. To provide a bridge to the existing literature on adjoint methods in other fields, we derive the sensitivity equations for Maxwell's equations in the PDE framework widely used in fluid mechanics.

  View details for DOI 10.1364/OE.23.023899

  View details for Web of Science ID 000362419900082

  View details for PubMedID 26368483

• Fabrication and Operation of a Nano-Optical Conveyor Belt JOVE-JOURNAL OF VISUALIZED EXPERIMENTS Ryan, J., Zheng, Y., Hansen, P., Hesselink, L. 2015

  Abstract

  The technique of using focused laser beams to trap and exert forces on small particles has enabled many pivotal discoveries in the nanoscale biological and physical sciences over the past few decades. The progress made in this field invites further study of even smaller systems and at a larger scale, with tools that could be distributed more easily and made more widely available. Unfortunately, the fundamental laws of diffraction limit the minimum size of the focal spot of a laser beam, which makes particles smaller than a half-wavelength in diameter hard to trap and generally prevents an operator from discriminating between particles which are closer together than one half-wavelength. This precludes the optical manipulation of many closely-spaced nanoparticles and limits the resolution of optical-mechanical systems. Furthermore, manipulation using focused beams requires beam-forming or steering optics, which can be very bulky and expensive. To address these limitations in the system scalability of conventional optical trapping our lab has devised an alternative technique which utilizes near-field optics to move particles across a chip. Instead of focusing laser beams in the far-field, the optical near field of plasmonic resonators produces the necessary local optical intensity enhancement to overcome the restrictions of diffraction and manipulate particles at higher resolution. Closely-spaced resonators produce strong optical traps which can be addressed to mediate the hand-off of particles from one to the next in a conveyor-belt-like fashion. Here, we describe how to design and produce a conveyor belt using a gold surface patterned with plasmonic C-shaped resonators and how to operate it with polarized laser light to achieve super-resolution nanoparticle manipulation and transport. The nano-optical conveyor belt chip can be produced using lithography techniques and easily packaged and distributed.

  View details for DOI 10.3791/52842

  View details for PubMedID 26381708

  View details for PubMedCentralID PMC4692561

• High gradient rf gun studies of CsBr photocathodes PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS Vecchione, T., Maldonado, J. R., Gierman, S., Corbett, J., Hartmann, N., Pianetta, P. A., Hesselink, L., Schmerge, J. F. 2015; 18 (4)

  View details for DOI 10.1103/PhysRevSTAB.18.040701

  View details for Web of Science ID 000352126600001

• Linear and nonlinear modelling of a theoretical travelling-wave thermoacoustic heat engine JOURNAL OF FLUID MECHANICS Scalo, C., Lele, S. K., Hesselink, L. 2015; 766

  View details for DOI 10.1017/jfm.2014.745

  View details for Web of Science ID 000349076900018

• Simultaneous Transport of Multiple Nanoparticles Across a Patterned Plasmonic Substrate Ryan, J., Zheng, Y., Hansen, P., Huang, T., Hesselink, L., IEEE IEEE. 2015

  View details for Web of Science ID 000370627100178

• A cesium bromide photocathode excited by 405 nm radiation APPLIED PHYSICS LETTERS Maldonado, J. R., Cheng, Y. T., Pianetta, P., Pease, F. W., Hesselink, L. 2014; 105 (2)

  View details for DOI 10.1063/1.4890538

  View details for Web of Science ID 000341151400008

• Nano-optical conveyor belt, part I: theory. Nano letters Hansen, P., Zheng, Y., Ryan, J., Hesselink, L. 2014; 14 (6): 2965-2970

  Abstract

  We propose a method for peristaltic transport of nanoparticles using the optical force field over a nanostructured surface. Nanostructures may be designed to produce strong near-field hot spots when illuminated. The hot spots function as optical traps, separately addressable by their resonant wavelengths and polarizations. By activating closely packed traps sequentially, nanoparticles may be handed off between adjacent traps in a peristaltic fashion. A linear repeating structure of three separately addressable traps forms a "nano-optical conveyor belt"; a unit cell with four separately addressable traps permits controlled peristaltic transport in the plane. Using specifically designed activation sequences allows particle sorting.

  View details for DOI 10.1021/nl404011s

  View details for PubMedID 24807203

• Nano-Optical Conveyor Belt, Part II: Demonstration of Handoff Between Near-Field Optical Traps. Nano letters Zheng, Y., Ryan, J., Hansen, P., Cheng, Y., Lu, T., Hesselink, L. 2014; 14 (6): 2971-2976

  Abstract

  Optical tweezers have been widely used to manipulate biological and colloidal material, but the diffraction limit of far-field optics makes focused beams unsuitable for manipulating nanoscale objects with dimensions much smaller than the wavelength of light. While plasmonic structures have recently been successful in trapping nanoscale objects with high positioning accuracy, using such structures for manipulation over longer range has remained a significant challenge. In this work, we introduce a conveyor belt design based on a novel plasmonic structure, the resonant C-shaped engraving (CSE). We show how long-range manipulation is made possible by means of handoff between neighboring CSEs, and we present a simple technique for controlling handoff by rotating the polarization of laser illumination. We experimentally demonstrate handoff between a pair of CSEs for polystyrene spheres 200, 390, and 500 nm in diameter. We then extend this technique and demonstrate controlled particle transport down a 4.5 μm long "nano-optical conveyor belt."

  View details for DOI 10.1021/nl404045n

  View details for PubMedID 24807058

• Differential Phase Contrast 3-D Imaging system and Applications DHS Symposium, Washington DC Hesselink, L. 2013
• Full-scale simulation and reduced-order modeling of a thermoacoustic engine the bulletin of the 66th Annual Meeting of the APS Division of Fluid Dynamics, Pittsburgh, Pennsylvania Scalo, C., Lin, J., Lele, S. L., Hesselink, L. 2013
• Towards full-scale modeling of a traveling-wave thermoacoustic engine Proceedings of the AIAA Fluid Dynamics Conference and Exhibit, San Diego, California Scalo, C., Lin, J., Lele, S. K., Hesselink, L. 2013
• Numerical investigation of a traveling-wave thermoacoustic heat engine Annual Research Briefs, Center for Turbulence Research, Stanford University, Stanford California. Scalo, C., Lele, S. K., Hesselink, L. 2013
• Nano Optical Photo Electron Source CC3DMR, Jeju Island, Korea Hesselink, L. 2013
• Differential Phase Contrast 3-D imaging ISPDI, Beijing Hesselink, L. 2013
• Fundamentals of excitation and resonance of a Near-Field Transducer in the presence of a conductive magnetic recording medium Conference on Physics and Simulation of Optoelectronic Devices XX Piper, J. R., Hansen, P. C., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2012

  View details for DOI 10.1117/12.909477

  View details for Web of Science ID 000302993700017

• Design and implementation of multi-layer and multi-bit micro holographic optical data storage employing blue lasers Conference on Current Developments in Lens Design and Optical Engineering XIII Takashima, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2012

  View details for DOI 10.1117/12.930548

  View details for Web of Science ID 000316635500013

• Ultra-high resolution resonant C-shaped aperture nano-tip OPTICS EXPRESS Cheng, Y., Takashima, Y., Yuen, Y., Hansen, P. C., Leen, J. B., Hesselink, L. 2011; 19 (6): 5077-5085

  Abstract

  We report a new optical near-field transducer comprised of a metallic nano-antenna extending from the ridge of a C-shaped metallic nano-aperture. Finite-difference time domain simulations predict that the C-aperture nano-tip (CAN-Tip) provides high intensity (650x), high optical resolution (~λ/60), and background-free near-field illumination at a wavelength of 980 nm. The CAN-Tip has an aperture resonance and tip antenna resonance which may be tuned independently, so the structure can be made resonant at ultraviolet wavelengths without being unduly small. This near-field optical resolution of 16.1 nm has been experimentally confirmed by employing the CAN-Tip as an NSOM probe.

  View details for Web of Science ID 000288871300040

  View details for PubMedID 21445142

• Sub-15 nm Photo-electron Source Using a Nano-aperture Integrated with a Nano-antenna Conference on Lasers and Electro-Optics (CLEO) Cheng, Y., Takashima, Y., Maldonado, J. R., Scipioni, L., Ferranti, D., Pianetta, P. A., Hesselink, L., Pease, R. F. IEEE. 2011

  View details for Web of Science ID 000295612403061

• Nanophotonic Device Optimization with Adjoint FDTD Conference on Lasers and Electro-Optics (CLEO) Hansen, P., Zheng, Y., Perederey, E., Hesselink, L. IEEE. 2011

  View details for Web of Science ID 000295612403069

• Novel Optical Architecture for High Capacity and High Data Transfer Rate Holographic Data Storage Conference on Lasers and Electro-Optics (CLEO) Takashima, Y., Hesselink, L., Liu, J., Yang, L. IEEE. 2011

  View details for Web of Science ID 000295612402261

• Fast and accurate algorithms for quadratic phase integrals in optics and signal processing Conference on Three-Dimensional Imaging, Visualization, and Display 2011 Koc, A., Ozaktas, H. M., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2011

  View details for DOI 10.1117/12.884676

  View details for Web of Science ID 000294772300003

• Fast and accurate algorithm for the computation of complex linear canonical transforms JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Koc, A., Ozaktas, H. M., Hesselink, L. 2010; 27 (9): 1896-1908

  Abstract

  A fast and accurate algorithm is developed for the numerical computation of the family of complex linear canonical transforms (CLCTs), which represent the input-output relationship of complex quadratic-phase systems. Allowing the linear canonical transform parameters to be complex numbers makes it possible to represent paraxial optical systems that involve complex parameters. These include lossy systems such as Gaussian apertures, Gaussian ducts, or complex graded-index media, as well as lossless thin lenses and sections of free space and any arbitrary combinations of them. Complex-ordered fractional Fourier transforms (CFRTs) are a special case of CLCTs, and therefore a fast and accurate algorithm to compute CFRTs is included as a special case of the presented algorithm. The algorithm is based on decomposition of an arbitrary CLCT matrix into real and complex chirp multiplications and Fourier transforms. The samples of the output are obtained from the samples of the input in approximately N log N time, where N is the number of input samples. A space-bandwidth product tracking formalism is developed to ensure that the number of samples is information-theoretically sufficient to reconstruct the continuous transform, but not unnecessarily redundant.

  View details for Web of Science ID 000281671900001

  View details for PubMedID 20808396

• Near-field optical data storage using C-apertures APPLIED PHYSICS LETTERS Leen, J. B., Hansen, P., Cheng, Y., Gibby, A., Hesselink, L. 2010; 97 (7)

  View details for DOI 10.1063/1.3474801

  View details for Web of Science ID 000281153600075

• Polymeric light delivery via a C-shaped metallic aperture JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Cho, E., Kang, S., Leen, J. B., Suh, S., Sohn, J., Moon, C., Park, N., Hesselink, L., Park, Y. 2010; 27 (7): 1309-1316

  View details for Web of Science ID 000279429800001

• Fast and accurate computation of two-dimensional non-separable quadratic-phase integrals JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Koc, A., Ozaktas, H. M., Hesselink, L. 2010; 27 (6): 1288-1302

  Abstract

  We report a fast and accurate algorithm for numerical computation of two-dimensional non-separable linear canonical transforms (2D-NS-LCTs). Also known as quadratic-phase integrals, this class of integral transforms represents a broad class of optical systems including Fresnel propagation in free space, propagation in graded-index media, passage through thin lenses, and arbitrary concatenations of any number of these, including anamorphic/astigmatic/non-orthogonal cases. The general two-dimensional non-separable case poses several challenges which do not exist in the one-dimensional case and the separable two-dimensional case. The algorithm takes approximately N log N time, where N is the two-dimensional space-bandwidth product of the signal. Our method properly tracks and controls the space-bandwidth products in two dimensions, in order to achieve information theoretically sufficient, but not wastefully redundant, sampling required for the reconstruction of the underlying continuous functions at any stage of the algorithm. Additionally, we provide an alternative definition of general 2D-NS-LCTs that shows its kernel explicitly in terms of its ten parameters, and relate these parameters bidirectionally to conventional ABCD matrix parameters.

  View details for Web of Science ID 000278117700005

  View details for PubMedID 20508697

• Review on subwavelength confinement of light with plasmonics JOURNAL OF MODERN OPTICS Lee, B., Lee, I., Kim, S., Oh, D., Hesselink, L. 2010; 57 (16): 1479-1497

  View details for DOI 10.1080/09500340.2010.506985

  View details for Web of Science ID 000281854800001

• Review on Sub-wavelength confinement of light with plasmonics Journal of Modern Optics Lee, B., Il-Min, L., Seyoon, K., Oh, D., Hesselink, L. 2010; 16 (57): 1479-1497
• Experimental Verification of a l/50 Optical Spot Size of a C-aperture Nano Antenna Tip for Photo-electron Emitter Applications The 23rd International Vacuum Nanoelectronics Conference, Palo Alto, California Pease, R. F., Cheng, Y., Hansen, P., Yuen, Y., Hesselink, L., Pease, R. F., Maldonado, J. R., Pianetta, P. A. 2010
• Design Optimization for Nanophotonic Devices using Using Adjoint FDTD SPRC 2010 Annual Symposium, Stanford, CA Hansen, P., Hesselink, L. 2010
• Design and Implementation of Recording and Readout System for Micro-holographic Optical Data Storage Conference on Current Developments in Lens Design and Optical Engineering XI - and Advances in Thin Film Coatings VI Takashima, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2010

  View details for DOI 10.1117/12.860745

  View details for Web of Science ID 000287929200009

• Design and tolerance of NA 0.8 objective lenses for page based holographic data storage systems Jap. J. Appl. Phys. Takashima, Y., Hesselink, L. 2009; 48: 03A004-1
• Near-field optical data storage using C-apertures Post Deadline Presentation, International Symposium on Optical Memory, October 2009, Nagasaki, Japan Leen, J. B., Hansen, P., Cheng, Y. T., Gibby, A., Hesselink, L. 2009
• Inspection of Metallic Interconnects Using a C-aperture SNOM Stanford Photonics Research Conference, Stanford, CA. Leen, J. B., Hansen, P., Cheng, Y. T., Hesselink, L. 2009
• Improved focused ion beam fabrication of near-field apertures using a silicon nitride membrane OPTICS LETTERS Leen, J. B., Hansen, P., Cheng, Y., Hesselink, L. 2008; 33 (23): 2827-2829

  Abstract

  We report an improved fabrication method for C-shaped near-field apertures resonant in the near-IR regime. The apertures are created in a metal layer on a silicon nitride membrane using a focused ion beam and a through membrane milling technique that avoids two problems with fabricating very small apertures: gallium contamination and edge rounding. Finite-difference time-domain simulations predict a 63x more intense near field with a 2.2x smaller spot versus conventionally milled apertures. We verify the position of the simulated resonance peaks with experimental far-field transmission measurements where we also find an increase of 8.8x in intensity. Our method has applications to many other plasmonic devices including bow-tie and fractal apertures, periodic arrays, and gratings.

  View details for Web of Science ID 000262206500035

  View details for PubMedID 19037440

• Controlling light with light JOURNAL OF PHYSICS D-APPLIED PHYSICS Hesselink, L., Feinberg, J., Roosen, G. 2008; 41 (22)

  View details for DOI 10.1088/0022-3727/41/22/220301

  View details for Web of Science ID 000260738100001

• Three-dimensional optical disk data storage via the localized alteration of a format hologram APPLIED OPTICS McLeod, R. R., Daiber, A. J., Honda, T., McDonald, M. E., Robertson, T. L., Slagle, T., Sochava, S. L., Hesselink, L. 2008; 47 (14): 2696-2707

  Abstract

  Three-dimensional optical data storage is demonstrated in an initially homogenous volume by first recording a reflection grating in a holographic photopolymer. This causes the entire volume to be weakly reflecting to a confocal read/write head. Superposition of two or three such gratings with slightly different k-vectors creates a track and layer structure that specialized servo detection optics can use to lock the focus to these deeply-buried tracks. Writing is accomplished by locally modifying the reflectivity of the preexisting hologram. This modification can take the form of ablation, inelastic deformation via heating at the focus, or erasure via linear or two-photon continued polymerization in the previously unexposed fringes of the hologram. Storage by each method is demonstrated with up to eight data layers separated by as little as 12 microns.

  View details for Web of Science ID 000256327100019

  View details for PubMedID 18470266

• Fluorescence enhancement and focal volume reduction observed in c-shaped nano-apertures Conference on Plasmonics in Biology and Medicine V Yuen, Y., Fore, S., Huser, T., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2008

  View details for DOI 10.1117/12.764053

  View details for Web of Science ID 000256023100013

• High transmission through ridge nano-apertures on vertical-cavity surface-emitting lasers OPTICS EXPRESS Rao, Z., Hesselink, L., Harris, J. S. 2007; 15 (16): 10427-10438

  Abstract

  We report high-intensity nano-aperture Vertical-Cavity Surface- Emitting Lasers (VCSELs) with sub-100nm near-field spots using ridge apertures. Power transmission efficiency through different ridge apertures, including bowtie, C, H and I-shaped apertures on VCSELs were studied. Significantly higher transmission efficiencies were obtained from the ridge apertures than those from conventional square apertures. Mechanisms for high transmission through the ridge apertures are explained through simulation and waveguide theory. A new quadruple-ridge aperture is proposed and designed via simulation. With the high-intensity and small spot size, VCSELs using these ridge nano-apertures are very promising means to realize applications such as ultrahigh-density near-field optical data storage and ultrahigh-resolution near-field imaging etc.

  View details for Web of Science ID 000248753100057

  View details for PubMedID 19547395

• High-intensity bowtie-shaped nano-aperture vertical-cavity surface-emitting laser for near-field optics OPTICS LETTERS Rao, Z., Hesselink, L., Harris, J. S. 2007; 32 (14): 1995-1997

  Abstract

  We report a high-intensity nano-aperture vertical-cavity surface-emitting laser (VCSEL) utilizing a bowtie-shaped aperture. A maximum power of 188 microW is achieved from a 180 nm bowtie aperture at a wavelength of 970 nm. The near-field full width at half-maximum intensity spot size 20 nm away from the bowtie aperture is 64 nm x 66 nm from simulation, and the peak near-field intensity is estimated to be as high as 47 mW/microm(2). This intensity is high enough to realize near-field optical recording, and the small spot size corresponds to storage densities up to 150 Gbits/in(2). The bowtie-aperture VCSEL also enables other applications, such as compact high-intensity probes for ultrahigh-resolution near-field imaging and single molecule fluorescence and spectroscopy.

  View details for Web of Science ID 000248669200013

  View details for PubMedID 17632621

• Design of a subwavelength bent C-aperture waveguide OPTICS LETTERS Hansen, P., Hesselink, L., Leen, B. 2007; 32 (12): 1737-1739

  Abstract

  We present a design for a subwavelength C-shaped optical waveguide with a 90 degrees junction that efficiently transports light while maintaining tight confinement with an exit spot size of lambda/7. Finite-difference time-domain simulations of perfect electric conductors and Au C-aperture waveguides are performed for optical frequencies. A design resonant near 780 nm is presented, with a spot size of 107 nm x 107 nm and an energy density enhancement factor of 10 for a bent waveguide of total length 1.4 microm.

  View details for Web of Science ID 000248144600047

  View details for PubMedID 17572764

• Pulsed-interleaved excitation FRET measurements on single duplex DNA molecules inside C-shaped nanoapertures NANO LETTERS Fore, S., Yuen, Y., Hesselink, L., Huser, T. 2007; 7 (6): 1749-1756

  Abstract

  Single-molecule fluorescence resonant energy transfer (FRET) is a widely accepted method for determining the spatial separation between molecules. In combination with pulsed interleaved excitation (PIE), additional information about the stoichiometry of molecular interactions is obtained. PIE-FRET, however, as implemented with standard confocal optics, requires the dilution of the sample to biologically low concentrations. Here, we show that PIE-FRET measurements inside nanometer-sized apertures yield meaningful biochemical data at 1000 x higher concentrations.

  View details for DOI 10.1021/nl070822v

  View details for Web of Science ID 000247186800056

  View details for PubMedID 17503872

• High-intensity C-shaped nanoaperture vertical-cavity surface-emitting laser with controlled polarization APPLIED PHYSICS LETTERS Rao, Z., Matteo, J. A., Hesselink, L., Harris, J. S. 2007; 90 (19)

  View details for DOI 10.1063/1.2737938

  View details for Web of Science ID 000246413400010

• High-intensity bowtie nano-aperture Vertical-Cavity Surface-Emitting Laser for ultrahigh-density near-field optical data storage Topical Meeting on Optical Data Storage Rao, Z., Hesselink, L., Harris, J. S. SPIE-INT SOC OPTICAL ENGINEERING. 2007

  View details for DOI 10.1117/12.738952

  View details for Web of Science ID 000250199900039

• Single Molecule Pulsed Interleaved Excitation Fluorescence Resonance Energy Transfer (PIE-FRET) inside Nanometer-scale Apertures at Biologically Relevant Concentration Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference Fore, S., Huser, T., Yuen, Y., Hesselink, L. IEEE. 2007: 1001–1002

  View details for Web of Science ID 000268751000503

• 90° Bent Metallic Waveguide with a Tapered C-shaped Aperture for Use in HAMR Optical Data Storage 2007, Proceedings of SPIE - The International Society for Optical Engineering; v.6620 Leen, J. B., Cho, E., Suh, S. D., Hansen, P. C., Sohn, J. S., Choa, S. H., Hesselink, L. 2007
• 90 degree bent metallic waveguide with a tapered C-shaped aperture for use in HAMR Dept. of Applied Physics Stanford University ; Stanford, CA 94305, Proceedings of SPIE - The International Society for Optical Engineering; 2007; v.6620, Conference: Optical Data Storage 2007; Portland, OR, United States Leen, B. J., Cho, E., Sun, S. D., Hansen, P. C., Sohn, J. S., Choa, S. H., Hesselink, L. 2007
• Phase Detection Based Surface Plasmon Resonance Biosensor in Infrared with Increased Sensitivity and Dynamic Range Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference Koc, A., Yin, X., Hesselink, L. IEEE. 2007: 2588–2589

  View details for Web of Science ID 000268751001743

• Lens designs for page-based holographic storage systems Topical Meeting on Optical Data Storage Takashima, Y., Orlov, S., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2007

  View details for DOI 10.1117/12.738927

  View details for Web of Science ID 000250199900043

• Goos-Hanchen shift surface plasmon resonance sensor APPLIED PHYSICS LETTERS Yin, X., Hesselink, L. 2006; 89 (26)

  View details for DOI 10.1063/1.2424277

  View details for Web of Science ID 000243157600008

• Low-loss subwavelength metal C-aperture waveguide OPTICS LETTERS Sun, L., Hesselink, L. 2006; 31 (24): 3606-3608

  Abstract

  We present a design of a linear optical waveguide that utilizes a C-shaped metallic nano-aperture that efficiently transports light while maintaining a spot size of lambda/10. The performance of a C-aperture waveguide is superior to both a regular ridge waveguide and other surface plasmon based metal nano-optical waveguides. The energy transport mechanisms are explained by the coupling of an aperture surface resonance and the thickness resonances inside the guide channel. Finite-difference time-domain simulations of gold C-aperture waveguides are performed for a 1.5 microm wavelength incident plane wave. The 1/e decay length in power transmission is predicted to be approximately 2.5 microm. The total power throughput is 1.66 for the 2.55 microm long guide, with an intensity 6 times that of the incident wave at a distance 120 nm from the exit plane, having a spot size of 150 nm.

  View details for Web of Science ID 000242560400015

  View details for PubMedID 17130918

• Pulsed laser deposition of single phase LiNbO3 thin film waveguides 2nd International Conference on Electroceramics (ICE-2005) Son, J., Orlov, S. S., Phillips, B., Hesselink, L. SPRINGER. 2006: 591–95

  View details for DOI 10.1007/s10832-006-8565-5

  View details for Web of Science ID 000243610600086

• Temporal and spectral nonspecularities in reflection at surface plasmon resonance APPLIED PHYSICS LETTERS Yin, X., Hesselink, L., Chin, H., Miller, D. A. 2006; 89 (4)

  View details for DOI 10.1063/1.2233622

  View details for Web of Science ID 000239376500002

• C-shaped nanoaperture-enhanced germanium photodetector OPTICS LETTERS Tang, L., Miller, D. A., Okyay, A. K., Matteo, J. A., Yuen, Y., Saraswat, K. C., Hesselink, L. 2006; 31 (10): 1519-1521

  Abstract

  We present a C-shaped nanoaperture-enhanced Ge photodetector that shows 2-5 times the photocurrent enhancement over that from a square aperture of the same area at 1310 nm wavelength. We demonstrate the polarization dependence of the C-aperture photodetector over a wide wavelength range. Our experimental observation agrees well with finite-difference time-domain simulation results.

  View details for PubMedID 16642158

• Media tilt tolerance of bit-based and page-based holographic storage systems OPTICS LETTERS Takashima, Y., Hesselink, L. 2006; 31 (10): 1513-1515

  Abstract

  Tilt tolerance of media is compared for bit-based and page-based holographic storage systems having an equal diffraction efficiency per bit detector, dynamic range of the medium, and surface recording density. We have formalized the diffraction efficiency degradation caused by aberrations of a reconstructing reference beam induced by tilt of the medium, using a coupled wave theory in the Fourier domain. The bit-based holographic storage system has a larger media tilt tolerance compared with a page-based system with relatively large page size.

  View details for Web of Science ID 000237431600050

  View details for PubMedID 16642156

• Polarization effects in plasmonic masks 31st International Conference on Micro- and Nano-Engineering Schellenberg, F., Adam, K., Sun, L., Matteo, J., Hesselink, L. ELSEVIER SCIENCE BV. 2006: 919–22

  View details for DOI 10.1016/j.mee.2006.01.232

  View details for Web of Science ID 000237581900073

• Realtime study of plume ejection dynamics in silicon laser ablation under 5 ns pulses APPLIED PHYSICS LETTERS Ren, J., Yin, X. B., Orlov, S. S., Hesselink, L. 2006; 88 (6)

  View details for DOI 10.1063/1.2172406

  View details for Web of Science ID 000235252800011

• En-squared power based optical design for page-based holographic storage systems International Optical Design Conference Takashima, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2006

  View details for DOI 10.1117/12.692287

  View details for Web of Science ID 000240891400047

• Consequences of plasmonic effects in photomasks 22nd European Mask and Lithography Conference ( EMLC 2006) Schellenberg, F. M., Adam, K., Matteo, J., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2006

  View details for DOI 10.1117/12.692732

  View details for Web of Science ID 000239925500011

• Consequences of plasmonic effects in photomasks Proceedings of SPIE - The International Society for Optical Engineering; v.6281 Schellenberg, F. M., Adam, K., Matteo, J., Hesselink, L. 2006
• Polzarization effects in plasmonic masks Microelectronic Engineering, April-September 2006, vol. 83, no. 4-9, p. 919-22. Schellenerg, F. Y., Adam, K., Sun, L. Y., Matteo, J., Hesselink, L. 2006
• Media tilt tolerance of page-based and bit-based and plographic storage systems. 2006 Optical Data Storage Topical Meeting - Post Deadline Papers; 2006; p.221-223, Conference: 2006 Optical Data Storage Topical Meeting; 2006; Montreal, QB, Canada Takashima, Y., Hesselink, L. 2006
• Highly sensitive surface plasmon resonance chemical sensor based on Goos-Hanchen effects SPIE-The International Society for Optical Engineering Yin, X., Hesselink, L. 2006; 6324
• Realtime study of plume ejection dynamics in silicon laser ablation under 5ns pulses Applied Physics Letters Ren, J., Yin, X., Orlov, Sergei, S., Hesselink, L. 2006; 88 (6): 61111
• Media tilt tolerance of bit-based and page-based holographic storage systems Conference on Organic Holographic Materials and Applications IV Takashima, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2006

  View details for DOI 10.1117/12.680862

  View details for Web of Science ID 000242040600004

• Media tilt tolerance of bit-based and page-based holographic storage systems Topical Meeting on Optical Data Storage Takashima, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2006

  View details for DOI 10.1117/12.685244

  View details for Web of Science ID 000239926300034

• Highly sensitive surface plasmon resonance chemical sensor based on Goos-Hanchen effects Conference on Plasmonics - Nanoimaging, Nanofabrication, and Their Applications II Yin, X., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2006

  View details for DOI 10.1117/12.679864

  View details for Web of Science ID 000241984200008

• A C-shaped nanoaperture Vertical-Cavity Surface-Emitting Laser for high-density near-field optical data storage Conference on Vertical-Cavity Surface-Emitting Lasers X Rao, Z., Matteo, J. A., Hesselink, L., Harris, J. S. SPIE-INT SOC OPTICAL ENGINEERING. 2006

  View details for DOI 10.1117/12.645083

  View details for Web of Science ID 000237084500016

• Media tilt tolerance of bit-based and page-based holographic storage systems Topical Meeting on Optical Data Storage Takashima, Y., Hesselink, L. IEEE. 2006: 221–223

  View details for Web of Science ID 000238327400073

• Electromagnetic phenomena in advanced photomasks 49th International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication Schellenberg, F. M., Adam, K., Matteo, J., Hesselink, L. A V S AMER INST PHYSICS. 2005: 3106–15

  View details for DOI 10.1116/1.2110281

  View details for Web of Science ID 000234613200161

• Sub-micron ferroelectric domain engineering in liquid phase epitaxy LiNbO3 by direct-write e-beam techniques JOURNAL OF CRYSTAL GROWTH Son, J., Yuen, Y., Orlov, S. S., Hesselink, L. 2005; 281 (2-4): 492-500

  View details for DOI 10.1016/j.jcrysgro.2005.04.050

  View details for Web of Science ID 000231011600041

• Laser ablation of silicon in water with nanosecond and femtosecond pulses OPTICS LETTERS Ren, J., Kelly, M., Hesselink, L. 2005; 30 (13): 1740-1742

  Abstract

  We describe laser ablation of Si under water by 5 ns, 355 nm and 100 fs, 800 nm pulses. Compared to that in air, an approximately twofold improvement in the ablation rate is found in water for femtosecond and nanosecond pulses. For higher laser irradiances, the plasma that forms at the water-air interface hampers further improvement of the ablation rate. We investigated the enhanced ablation process in water and found that the cavity-confinement geometry that increases the laser energy coupling to the target and allows more energy to be transferred to the cavity sidewalls plays an important role in the escalated material removal process. In addition, we show that the water layer that effectively reduces the oxidation and redeposition of the ablated debris is also responsible for improvements in the ablation process.

  View details for PubMedID 16075556

• Direct-write e-beam sub-micron domain engineering in liquid phase epitaxy (LPE) LiNbO3 thin films and single crystal LiNbO3 JOURNAL OF CRYSTAL GROWTH Son, J., Yuen, Y., Orlov, S. S., Galambos, L., Hesselink, L. 2005; 280 (1-2): 135-144

  View details for Web of Science ID 000229982600020

• Microholographic multilayer optical disk data storage APPLIED OPTICS McLeod, R. R., Daiber, A. J., McDonald, M. E., Robertson, T. L., Slagle, T., Sochava, S. L., Hesselink, L. 2005; 44 (16): 3197-3207

  Abstract

  Micrometer-sized reflection holograms can be written into a rapidly rotating homogeneous photopolymer disk at the focus of a high-numerical-aperture beam and its retroreflection to implement high-capacity multilayer digital data storage. This retroreflection is generated by an optical system with positive unity magnification to ensure passive alignment of the counterpropagating beam. Analysis reveals that the storage capacity and transfer rate of this bit-based holographic storage system compare favorably with traditional page-based systems but at a fraction of the system complexity and cost. The analysis is experimentally validated at 532 nm by writing and reading 12 layers of microholograms in a 125-microm photopolymer disk continuously rotating at 3600 rpm. The experimental results predict a capacity limit of 140 Gbytes in a millimeter-thick disk or over 1 Tbyte with the wavelength and numerical aperture of Blu-Ray.

  View details for Web of Science ID 000229724000008

  View details for PubMedID 15943253

• Rear surface spallation on single-crystal silicon in nanosecond laser micromachining JOURNAL OF APPLIED PHYSICS Ren, J., Orlov, S. S., Hesselink, L. 2005; 97 (10)

  View details for DOI 10.1063/1.1896095

  View details for Web of Science ID 000230168100116

• Fractal extensions of near-field aperture shapes for enhanced transmission and resolution OPTICS EXPRESS Matteo, J. A., Hesselink, L. 2005; 13 (2): 636-647

  Abstract

  Families of fractals are investigated as near-field aperture shapes. They are shown to have multiple transmission resonances associated with their multiple length scales. The higher iterations exhibit enhanced transmission, and spatial resolution exceeding the first order. Near-field enhancements of greater than 400 times the incident intensity and resolutions of better than ?/20 have been shown with apertures modeled after third iteration prefractals. Enhancements as large as 1011 have been shown, when compared with conventional square apertures that produce the same spot size. The effects of the complex permittivity values of the metal film are also addressed.

  View details for Web of Science ID 000226576800035

  View details for PubMedID 19488394

• Sub-micron Ferroelectric Domain Structures in Liquid Phase Epitaxy (LPE) LiNbO3 by Direct-Write e-Beam Techniques J. Crystal Growth Son, J., W., Yuen,  Y., Orlov, S., Hesselink, L. 2005; 2-4 (281): 492-500
• Recent work on network application layer: MioNet (TM), the virtual workplace for small businesses Conference on Architectures, Management, and Applications III Hesselink, L., Rizal, D., Bjornson, E., Miller, B., Chan, K. SPIE-INT SOC OPTICAL ENGINEERING. 2005

  View details for DOI 10.1117/12.640178

  View details for Web of Science ID 000235303900010

• Direct-write e-beam sub-micron domain engineering in liquid phase epitaxy LiNbO(3)Thin films Conference on Integrated Optics - Devices, Materials and Technologies IX Son, J. W., Yuen, Y., Orlov, S. S., Galambos, L., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2005: 283–290

  View details for DOI 10.1117/12.589312

  View details for Web of Science ID 000228895400033

• Direct-write E-beam Sub-Micron Domain Engineering in Liquid Phase Epitaxy LiNbO3 Thin Films SPIE Proceedings, Vol. 5728, 283-290 Son, J. W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2005
• Micro-Holograpic multi-layer optial disk data storage Applied Optics McLeod, R. R., Diaber, A. J., McDoald, M. E., Sochava, S. L., Robe3rtson, T. L. 2005; 44 (16): 3197-3207
• Pulsed laser deposition of single phase LiNbO{sub 3} thin film waveguides International Conference on Electroceramics-2005, Seoul, Korea Son, J. W., Orlov, S. S., Phillips, B., Hesselink, L. 2005
• Sub-micron Ferroelectric Domain Engineering in Liquid Phase Epitaxy LiNbO3 by Direct-Write e-Beam Techniques Plenary Talk, 10th Int. Conf. on photorefractive effects, materials and devices, Hainan, P. R. China Son, J. W., Hesselink, L. 2005
• Microholographic multilayer optical disk data storage Applied Optics McLeod, R. R., Daiber, A. J., McDonald, M. E., Robertson, T. L., Slagle, T., Sochava, S. L., Hesselink, L. 2005; 44 (16): 3197-3207
• Sub-micron ferroelectric domain engineering in liquid phase epitaxy LiNbO{sub 3} by direct-write e-beam techniques Journal of Crystal Growth Son, J., Yuen, Y., Orlov, S. S., Hesselink, L. 2005; 281 (2-4): 492-500
• Direct-Write e-Beam Domain Engineering in Liquid Phase Epitaxy (LPE) LiNbO3 Thin Films and Single Crystal LiNbO3 J. Crystal Growth Son, J., W., Yuen,  Y., Orlov, S., Galambos, L., Hesselink, L. 2005; 280: 135-144
• Direct-write E-beam Sub-Micron Domain Engineering in Liquid Phase Epitaxy LiNbO3 Thin Films Photonics West, San Jose, USA Son, J. W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2005
• Effects of e-Beam Parameters on Sub-micron Ferroelectric Domain Engineering in Liquid Phase Epitaxy LiNbO3 by Direct-Write e-Beam TOPS. Vol. 99, PR’05, 10th Int. Conf. on photorefractive effects, materials and devices, Hainan China Son, J. W., Yuen, Y., Orlov, S., Hesselink, L. 2005
• High-transfer-rate high-capacity holographic disk data-storage system APPLIED OPTICS Orlov, S. S., Phillips, W., Bjornson, E., Takashima, Y., Sundaram, P., Hesselink, L., Okas, R., Kwan, D., Snyder, R. 2004; 43 (25): 4902-4914

  Abstract

  We describe the design and implementation of a high-data-rate high-capacity digital holographic storage disk system. Various system design trade-offs that affect density and data-rate performance are described and analyzed. In the demonstration system that we describe, high-density holographic recording is achieved by use of high-resolution short-focal-length optics and correlation shift multiplexing in photopolymer disk media. Holographic channel decoding at a 1-Gbit/s data rate is performed by custom-built electronic hardware. A benchmark sustained optical data-transfer rate of 10 Gbits/s has been successfully demonstrated.

  View details for Web of Science ID 000223663300015

  View details for PubMedID 15449477

• Holographic data storage systems PROCEEDINGS OF THE IEEE Hesselink, L., Orlov, S. S., Bashaw, M. C. 2004; 92 (8): 1231-1280

  View details for DOI 10.1109/JPROC.2004.831212

  View details for Web of Science ID 000222842400002

• Spectral analysis of strongly enhanced visible light transmission through single C-shaped nanoapertures APPLIED PHYSICS LETTERS Matteo, J. A., Fromm, D. P., Yuen, Y., Schuck, P. J., Moerner, W. E., Hesselink, L. 2004; 85 (4): 648-650

  View details for DOI 10.1063/1.1774270

  View details for Web of Science ID 000222855400046

• Large positive and negative lateral optical beam displacements due to surface plasmon resonance APPLIED PHYSICS LETTERS Yin, X. B., Hesselink, L., Liu, Z. W., Fang, N., Zhang, X. 2004; 85 (3): 372-374

  View details for DOI 10.1063/1.1775294

  View details for Web of Science ID 000222680400008

• Design of a C aperture to achieve lambda/10 resolution and resonant transmission JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Shi, X. L., Hesselink, L. 2004; 21 (7): 1305-1317

  View details for Web of Science ID 000222514500006

• Ultra-high density optical data storage 17th Annual Meeting of the IEEE-Lasers-and-Electro-Optics-Society Hesselink, L., Leen, B., Matteo, J., Sun, L. Y., Yuen, Y. IEEE. 2004: 796–797

  View details for Web of Science ID 000225390900396

• Characterization of a preliminary narrow-band absorption material for holographic data storage Topical Meeting on Optical Data Storage Dubois, M., Shi, X. L., Lawrence, B., Boden, E., Chan, K. P., Nielsen, M., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2004: 589–596

  View details for DOI 10.1117/12.556985

  View details for Web of Science ID 000224377800071

• Topology visualization of the optical power flow through a novel C-shaped nano-aperture IEEE Visualization 2004 Conference Sun, L. Y., Batra, R. K., Shi, X. L., Hesselink, L. IEEE. 2004: 337–344

  View details for Web of Science ID 000225187500043

• Direct-write E-beam submicron domain engineering in LiNbO3 thin films grown by liquid phase epitaxy Symposium on Ferroelectric Thin Films XII held at the 2003 MRS Fall Meeting Son, J. W., Yuen, Y., Orlov, S. S., Phillips, B., Galambos, L., Shur, V. Y., Hesselink, L. MATERIALS RESEARCH SOCIETY. 2004: 523–528

  View details for Web of Science ID 000222178100080

• Mapping the Confinement of Plasmonic Waveguides and Metallic Nano-Apertures NFO-8 Zia, R., Selker, M., Matteo, J., A., Hesselink, L., Brongersma, M., L. 2004
• Topology visualization of the optical power flow through a novel C-shaped nano-aperture IEEE Visualization 2004, Austin, TX, USA Sun, L., Batra, R. K., Shi, X., Hesselink, L. 2004
• Characterization of a preliminary narrow-band absorption material for holographic data storage Proceedings of the SPIE - The International Society for Optical Engineering; 2004; vol.5380, no.1, p.589-96, Conference: Optical Data Storage 2004, 18-21 April 2004, Monterey, CA, USA Dubois, M., Shi, X., Lawrence, B., Boden, E., Chan, K. P., Nielsen, M., Hesselink, L. 2004
• Spectral study of enhanced transmission through single C-shaped nano-apertures. International Quantum Electronics Conference (IQEC), 16-21 May 2004, San Francisco, CA, USA; 1500p.; 4p. Conference: International Quantum Electronics Conference (IQEC), San Francisco, CA, USA Matteo, J. A., Fromm, D. P., Yuen, Y., Schuck, P. J., Moerner, W. E., Hesselink, L. 2004
• Characterization of a preliminary narrow-band absorption material for holographic data storage. Dubois, M., Shi, X., Lawrence, B. L., Boden, E. P., Chan, K. P., Nielsen, M., Hesselink, L. 2004
• Topology visualization of the optical power flow through a novel C-shaped nano-aperture. Sun, L., Batra, R. K., Shi, X., Hesselink, L. 2004
• Spectral Analysis of Strongly Enhanced Visible Light Transmission Throug Single C-Shaped Nano-Apertures Matteo, J., A., Fromm, D., P, Yuen, Y., Schuck, P., J., Moerner, W., E., Hesselink, L. 2004
• Submicron Ferroelectric Domain engineering in LiNbO3 thin films grown by liquid phase epitaxy Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2004
• Calibration by Field Detection Dichotomy for Apertured-Cantilever Probes in PSTM and Collection-Mode NSOM NFO-8 Zia, R., Matteo, J., A., Hesselink, L., Brongersma, M., L. 2004
• Design of a C aperture to achieve {lambda}/10 resolution and resonant transmission Journal of the Optical Society of America B: Optical Physics Shi, X. L., Hesselink, L. 2004; 21 (7): 1305-1317
• Nanosecond laser silicon micromachining. Ren, J., Orlov, S. S., Hesselink, L., Howard, H., Conneely, A. J. 2004
• Parametric studies on Suppressing Secondary Phases in Lithium Niobate Thin Films deposited by Pulsed Laser Deposition Son, J., W., Orlov, S., Phillips, W., Hesselink, L. 2004
• High-transfer rate high-capacity holographic disk data-storage system Applied Optics Orlov, S., S., Phillips, W., Bjornson, E., Takashima, Y., Sundaram, P., Hesselink, L. 2004; 43 (25): 4902-14
• Direct-write E-beam Periodically Poled ~400nm Domains in Lithium Niobate Thin Films grown by Liquid Phase Epitaxy Ukrainian Journal of Physics Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2004; 4 (49): 382-388
• Spectral Analysis of Strongly Enhanced Visible Light Transmission Through Single C-Shaped Nano-Apertures Virtual Journal of Nanoscale Science & Technology Matteo, J., A. , Fromm, D., P., Yuen, Y., Schuck, P., J., Moerner, W., E., Hesselink, L. 2004
• Spectral Analysis of Strongly Enhanced Visible Light Transmission Through Single C-Shaped Nano-Apertures Applied Physics Letters Matteo, J., A. , Fromm, D., P., Yuen, Y., Schuck, P., J., Moerner, W., E., Hesselink, L. 2004; 85.4
• Characterization of a preliminary narrow-band absorption material for holographic data storage Dubois, M., Shi, X., Lawrence, B., Boden, E., Chan, K. P., Nielsen, M., Hesselink, L. 2004
• Direct-write E-beam Periodically Poled ~400nm Domains in Lithium Niobate Thin Films grown by Liquid Phase Epitaxy Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2004
• Fractal Extensions of Near-Field Aperture Shapes for Enhanced Transmission and Resolution Matteo, J., A. , Hesselink, L. 2004
• Topology Visualization of the Optical Power Flow Through a Novel C-Shaped Nano-Aperture IEEE Visualization Sun, L., Batra, Rajesh, K., Shi, X., Hesselink, L. 2004
• Design, Characterization, and Functionalization of C-Shaped Nanoaperture Probes NFO-8 Matteo, J., A. , Zia, R., Fromm, D., P., Brongersma, M., L., Moerner, W., E., Hesselink, L. 2004
• Spectral Analysis of Strongly Enhanced Visible Light Transmission Through Single C-Shaped Nano-Apertures Matteo, J., A., Fromm, D., P., Yuen, Y., Schuck, P., J., Moerner, W., E., Hesselink, L. 2004
• Hologram Optical Recording Optical recording technology and materials of the next generation Inoue, M., Hesselink, L. CMC publishing in Japanese.. 2004: 1
• Characterization of a Preliminary Narrow-Band Absorption Material for Holographic Data Storage Optical Data Storage Monterey, CA. Dubois, M., Lawrence, B., L., tian, P., Boden, E., P., Chan, K., P., Nielsen, M., Hesselink, L. 2004
• Holographic data storage systems Hesselink, L., Orlov, S. S., Bashaw, M. 2004
• Advanced Data Storage Materials and Characterization Techniques Hesselink, Mijiritskii, Ahner, Levy 2004
• Nanosecond laser silicon micromachining Conference on Photon Processing in Microelectronics and Photonics III Ren, J., Orlov, S. S., Hesselink, L., Howard, H., Conneely, A. SPIE-INT SOC OPTICAL ENGINEERING. 2004: 382–393

  View details for DOI 10.1117/12.529442

  View details for Web of Science ID 000223331300042

• Parametric studies on suppression of secondary phases in LiNbO3 thin films deposited by pulsed laser deposition Symposium on Ferroelectric Thin Films XII held at the 2003 MRS Fall Meeting Son, J. W., Orlov, S. S., Phillips, B., Hesselink, L. MATERIALS RESEARCH SOCIETY. 2004: 541–546

  View details for Web of Science ID 000222178100083

• Holographic shift multiplexing in thin volumetric media JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Orlov, S. S., Hesselink, L. 2003; 20 (9): 1912-1921

  View details for Web of Science ID 000185182000015

• Coupling of orthogonally polarized waves and vectorial coherent oscillation in periodically poled LiNbO3 : Y : Fe JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Barilov, D., Shumelyuk, A., Hesselink, L., Sturman, B., Odoulov, S. 2003; 20 (8): 1649-1655

  View details for Web of Science ID 000184554300007

• Ultrahigh light transmission through a C-shaped nanoaperture OPTICS LETTERS Shi, X. L., Hesselink, L., Thornton, R. L. 2003; 28 (15): 1320-1322

  Abstract

  Optical resolution beyond the diffraction limit can be achieved by use of a metallic nanoaperture in a near-field optical system. Conventional nanoapertures have very low power throughput. Using a numerical finite-difference time domain method, we discovered a unique C-shaped aperture that provides approximately 3 orders of magnitude more power throughput than a conventional square aperture with a similar near-field spot size of approximately 0.1 lambda. Microwave experiments at 6 GHz quantitatively confirmed the simulated transmission enhancement. The high transmission of the C-aperture--or one of the related shapes--is linked to both a propagation mode in the aperture and local surface plasmons.

  View details for Web of Science ID 000184256400010

  View details for PubMedID 12906076

• Holographic shift multiplexing in think volumetric media Journal of the Optical Society of America B (Optical Physics) Hesselink, L., Orlov, Sergei, S. 2003; 20 (9): 1912-21
• Photorefractive and spectroscopic properties of Pr : LiNbO3 Conference on Photorefractive Fiber and Crystal Devices Lim, K. S., Pham, V. T., Lee, S. K., Trinh, M. T., Hesselink, L., Neurgaonkar, R. R. SPIE-INT SOC OPTICAL ENGINEERING. 2003: 45–54

  View details for Web of Science ID 000186668800006

• Parametric studies on Suppressing Secondary Phases in Lithium Niobate Thin Films deposited by Pulsed Laser Deposition Son, J., W., Orlov, S., Phillips, W., Hesselink, L. 2003
• Domain engineering in LiNbO3 thin films grown by liquid phase epitaxy Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2003
• Spectral Analysis of Strongly Enhanced Visible Light Transmission Through Single C-Shaped Nano-Apertures Matteo, J., A., Fromm, D., P, Yuen, Y., Schuck, P., J., Moerner, W., E., Hesselink, L. 2003
• Three-dimensional analysis of holographic shift multiplexing in thin volumetric media Orlov, Sergei, S., Hesselink, L. 2003
• Domain engineering in LiNbO3 thin films grown by liquid phase epitaxy Bragg Gratings Photosensitivity and Poling in Glass Waveguides,OSA topical Meeting Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2003
• Digital Volume Holography and Optical Disk Storage System Hesselink, L., Inoue, M. Japanese publication. 2003
• Stanford CyberLab: Internet Assisted Laboratories International Journal of Distance Education Technologies, Idea Group Publishing. Hesselink, L., Rizal, D., Bjornson, E., Paik, S., Batra, R., Catrysse, P. 2003; 1 (1)
• Submicron Ferroelectric Domain engineering in LiNbO3 thin films grown by liquid phase epitaxy Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2003
• Coupling of orthogonally polarized waves and vectorial coherent oscillation in periodically poled LiNb03:y:Fe JOSA B 2003; 20 (8): 1649-55
• Direct-write e-beam domain engineering in LiNbO3 thin films grown by liquid phase epitaxy Stanford Photonics Research Center Annual Meeting Son, J., W., Yuen, Y., Orlov, S., Phillips, W., Galambos, L., Shur, V., Hesselink, L. 2003
• Mechanisms for enhancing power throughput from planar nano-apertures for near-field optical data storage International Symposium on Optical Memory (ISOM2001) Shi, X. L., Hesselink, L. JAPAN SOC APPLIED PHYSICS. 2002: 1632–35

  View details for DOI 10.1143/JJAP.41.1632

  View details for Web of Science ID 000176451600004

• Materials requirements for dense optical data storage 1st International Workshop on Glass and the Photonics Revolution Hesselink, L. VERLAG DEUTSCHEN GLASTECHNISCHEN. 2002: 39–50

  View details for Web of Science ID 000184701000007

• Volumetric optical disk storage with collinear polarized holography Joint International Symposium on Optical Memory and Optical Data Storage Horimai, H., Hesselink, L., Inoue, M. IEEE. 2002: A43–A44

  View details for Web of Science ID 000178039100158

• Mechanisms for Enhancing Power Throughput from Planar Nano-Apertures for Near Field Optical Data Storage Jpn. J. Appl. Phys. Shi, X., Hesselink, L. 2002; 3B (41): 1632-1635
• Internet-Based Remotely Controlled Laboratories Hesselink, L. 2002
• Ultra-high Power Transmission Through a Single Nano-Aperture Hesselink, L., Shi, X. 2002
• Ultra-High Power Transmission Through a Single Nano-aperature Hesselink, L. 2002
• A Nano-Aperture with 1000x Power Throughput Enhancement for Very Small Aperture Laser System (VSAL) Shi, X., Thornton, R., Hesselink, L. 2002
• Growth and Characterization of Lithium Niobate Waveguide by Liquid Phase Epitaxy Son, J., W., Phillips, W., Galambos, L., Orlov, S., Hesselink, L. 2002
• Coupling of Orthogonally Polarized Waves and Vectorial Coherent Oscillation in Periodically Poled LiNb03 Fe, Y., Bonitou, D., Schuwelywk, A., Hesselink, L., Sturman, B., Odoulov, S. 2002
• Recent Advances in Holographic Data Storage: Pre-Cursor for Commercialization Hesselink, L., Orlov, S. 2002
• Review and Introduction Journal of Magnetic Society of Japan Inoue, M., Hesselink, L. 2002; 27: 635-646
• Digital holographic demonstration systems in Holographic Data Storage Hesselink, L. edited by Coufal, Psaltis, Sincerbox Springer-Verlag. 2002: 383–396
• Gated optical recording for nonvolatile holography in photorefractive materials INFRARED HOLOGRAPHY FOR OPTICAL COMMUNICATIONS Hesselink, L., Orlov, S. S. 2002; 86: 41-57

  View details for Web of Science ID 000181256700003

• Associative recall in a volume holographic storage system based on phase-code multiplexing APPLIED PHYSICS B-LASERS AND OPTICS Berger, G., Denz, C., Orlov, S. S., Phillips, B., Hesselink, L. 2001; 73 (8): 839-845

  View details for DOI 10.1007/s003400100748

  View details for Web of Science ID 000173171800012

• Doubly doped stoichiometric and congruent lithium niobate for holographic data storage 1st Asian Conference on Crystal Growth and Crystal Technology Galambos, L., Orlov, S. S., Hesselink, L., Furukawa, Y., Kitamura, K., Takekawa, S. ELSEVIER SCIENCE BV. 2001: 228–32

  View details for Web of Science ID 000169527000046

• Mechanisms for Enhancing Power Throughput from Nano-apertures for Near Field Optical Data Storage ISOM 2001 , Taipei, Taiwan. Shi, X., Hesselink, L. 2001
• Content-addressable data storage in holographic memories based on phase-coded multiplexing 8th International Conference on Photorefractive Effects, Materials and Devices Denz, C., Berger, G., Muller, K. O., Tschudi, T., Orlov, S., Philips, W., Hesselink, L. OPTICAL SOC AMERICA. 2001: 122–130

  View details for Web of Science ID 000184857100021

• A nano-aperture with 1000x power throughput enhancement for Very Small Aperture Laser system (VSAL) 17th Topical Meeting on Optical Data Storage (ODS2001) Shi, X. L., Thornton, R. L., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2001: 320–327

  View details for Web of Science ID 000175013500038

• Holographic properties of doped stoichiometric LiNbO3 crystals Tao 2001
• Doubly doped stoichiometric and congruent lithium niobate for holographic data storage Journal of Crystal Growth Galambos, L., Orlov, Sergei, S., Furukawa, Y., Kitamura, K., Takekawa, S. 2001
• Content Addressable Data Storage in Holographic Memories Based on Phase-Coded Multiplexing Muller, K. O. 2001
• Applications of Ferromagnetic and Optical Materials, Storage and Magnetoelectronics Borg, Herman, J., Bussman, K., Egelhoff Jr., William, F., Hesselink, L., Majetich, Sara, A., Murdock, Edward, S.I. 2001
• Content-addressable data storage in holographic memories based on phase-coded multiplexing Denz, C., Berger, G., Müller, K., O., Tschudi, T., Orlov, S., S., Phillips, W., Hesselink, L. 2001
• Ultra-high-density data storage COMMUNICATIONS OF THE ACM Hesselink, L. 2000; 43 (11): 33-36

  View details for Web of Science ID 000090143200016

• Volume holographic storage in near-stoichiometric LiNbO3 : Ce,Mn JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS Kim, I. G., Lee, M., Takekawa, S., Furukawa, Y., Kitamura, K., Galambos, L., Hesselink, L. 2000; 39 (11A): L1094-L1096

  View details for Web of Science ID 000167218300007

• Enhanced photorefractive effects of cerium-doped lead barium niobate crystals JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Liu, A., Lee, M., Hesselink, L. 2000; 17 (4): 542-547

  View details for Web of Science ID 000086394400008

• Ultra-high transfer rate high capacity holographic disk digital data storage system 29th Applied Imagery Pattern Recognition Workshop Orlov, S. S., Phillips, W., Bjornson, E., Hesselink, L., Okas, R. IEEE COMPUTER SOC. 2000: 71–77

  View details for Web of Science ID 000172147200011

• Topology based methods for quantitative comparisons of vector fields 7th Meeting on Visual Data Exploration and Analysis Batra, R., Kling, K., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 2000: 268–279

  View details for Web of Science ID 000086471500027

• Parallel associative search by use of a volume holographic memory 29th Applied Imagery Pattern Recognition Workshop Li, X. C., Dimov, F., Phillips, W., Hesselink, L., McLeod, R. IEEE COMPUTER SOC. 2000: 78–83

  View details for Web of Science ID 000172147200012

• Parallel Associative Search by Use of a Volume Holographic Memory Li, X., Dimov, F., Phillips, W., Hesselink, L., McLeod, R. 2000
• High transfer rate (1 Gbit/sec) high-capacity holographic disk digital data storage system Orlov, S., S., Bjornson, E., Phillips, W., Takashima, Y., Li, X., Hesselink, L. 2000
• Cyberlab: A New Paradigm for Internet Learning edited by Hesselink, L., Bjornson, E., Rizal, D. 2000
• Topology based methods for quantitative comparisons of vector fields in Visual Data Exploration and Analysis VII Batra, R., Kling, K., Hesselink, L. edited by Erbacher, R., Chen, P., Roberts, J. SPIE. 2000: 1
• Video demonstration of high data rate holographic disk storage system Phillips, W., Orlov, S., S., Bjornson, E., Sundaram, P., Hesselink, L., Okas, R. 2000
• Content-addressable data storage in holographic memories based on phase-coded multiplexing. Journal of Neural Networks Denz, C., Berger, G., Muller, K., O., Tschudi, T., Orlov, S., Phillips, W., Hesselink, L. 2000
• Volume Holographic Storage in Near-Stoichimetric LiNb03:Ce,Mn Journal of Applied Physics, Part 2 Kim, I. G., Lee, M., Takekawa, S., Furukawa, Y., Kitmura, K., Galambos, L., Hesselink, L. 2000; 39 (11A): L1094-L1096
• Parallel associative search by use of a volume holographic memory Li, X., Dimov, F., Phillips, W., Hesselink, L., McLeod, R. 2000
• Three dimensional recording (3DR) technology. Hessellink, L. 2000
• UV-enhanced photorefractive sensitivity in Mn Ce:LiNbO3, SPIE Manuscript Lim, K., Kim, B., Kim, J., Hesselink, L., Neurgaonkar, R., R. 2000: 4110-04
• 10 gigabit/second sustained optical transfer rate from a holographic disk digital data storage system Orlov, S., S., Phillips, W., Bjornson, E., Hesselink, L., Okas, R. 2000
• Holographic digital storage with sensitive and flexible photo-initiated polymerization recording. Paraschis, L., Sugiyama, Y., Orlov, S., Hesselink, L. 2000
• Hologram Fixing and Nonvolatile Storage in Photorefractive Materials in Holographic Data Storage Hesselink, L., Orlov, S., S., Phillips, W. edited by Coufal, H., Psaltis, D., Sincerbox, G. Springer, New York. 2000: 127–148
• Volume holographic storage in near-stoichiometric LiNb) {sub 3}:Ce,Mn Japanese Journal of Applied Physics, Part 2 (Letters) Kim, I., G., Lee, M., Takekawa, S., Furukawa, Y., Galambos, L., Hesselink, L. 2000; 39 (11A): L1094-6
• Improved Lithium Niobate Films Deposited by Pulsed Laser Deposition for Waveguide Applications. Journal of Cryatl technology Son, J., Orlov, S., Phillips, W., Galambos, L., Hesselink, L. 2000
• Digital Holographic Demonstration Systems by Stanford University and Siros Technologies Holographic Data Storage Hesselink, L. edited by Coufal, Psaltis, Sincerbox Springer. 2000: 383–397
• UV-enhanced photorefractive sensitivity in Mn,Ce:LiNbO{sub 3} Lim, K., Kim, B., Kim, J., Hesselink, L., Neurgaonkar, R., R. 2000
• High Transfer rate (1 Gbit/sec) high-capacity holographic disk digital storage system Orlov, S., S., Bjornson, E., Phillips, W., Takashima, Y., Li, X., Hesselink, L. 2000
• Holographic storage testbeds in Holographic data storage Hesselink, L. edited by Coufal, Psaltis, Sincerbox Springer Verlag. 2000
• Holographic data storage in “Photorefractive Optics Hesselink, L. edited by Fournir, J. Springer. 2000
• The physical properties of photopolymer recording for nonvolatile volume holographic storage. 18th Congress of the International Commission for Optics - Optics for the Next Millennium Paraschis, L., Sugiyama, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 1999: 448–449

  View details for Web of Science ID 000082790200194

• Physical properties of volume holographic recording utilizing photo-initiated polymerization for nonvolatile digital data storage Conference on Advanced Optical Data Storage - Materials, Systems, and Interfaces to Computers Paraschis, L., Sugiyama, Y., Hesselink, L. SPIE-INT SOCIETY OPTICAL ENGINEERING. 1999: 72–83

  View details for Web of Science ID 000084756900009

• Feature comparisons of 3-D vector field using earth mover’s distance Batra, R., Hesselink, L. 1999
• Topology based vector field comparisons using graph methods in Late Breaking Hot Topics IEEE Visualization ’99 Batra, R., Kling, K., Hesselink, L. edited by Varsney, A., Wittenbrik, C., M., Hagen, H. CS Press, Los Alamitos, CA. 1999: 25–28
• Cyberlab, A New Paradigm in Distance Learning National Instruments Week, Education Day Bjornson, E., Rizal, D., Hesselink, L. 1999
• Fundamental issues related to digital holographic data storage Hesselink, L., Paraschis, L. 1999
• Physical properties of photopolymer recording for nonvolatile volume holographic storage Paraschis, L., Sugiyama, Y., Orlov, S., Hesselink, L. 1999
• The physical properties of volume holographic recording utilizing photoinitiated polymerization for nonvolatile digital data storage. Joint International Symposium on Optical Memory and Optical Data Storage (ISOM/ODS 99) Paraschis, L., Sugiyama, Y., Hesselink, L. SPIE-INT SOC OPTICAL ENGINEERING. 1999: 258–260

  View details for Web of Science ID 000083679500082

• Photorefractive materials for nonvolatile volume holographic data storage Science (New York, N.Y.) Hesselink, L., Orlov, S. S., Liu, A., Akella, A., Lande, D., Neurgaonkar, R. R. 1998; 282 (5391): 1089-94

  Abstract

  Optically gated recording and nonvolatile readout in a digital volume holographic data storage system that uses a pair of mutually incoherent light sources during recording and only one for readout were demonstrated recently. This approach used stoichiometric lithium niobate, which after post-growth processing gave rise to an at least two orders of magnitude improvement in sensitivity over the best materials reported previously. It is also shown that by adding certain dopants (iron and manganese) to near-stoichiometric lithium niobate, the dark storage time and gating efficiency can be increased compared with previous work. The underlying physical mechanisms of gated recording and the effectiveness of the gating process responsible for this manifold improved performance are discussed, and bipolarons and small polarons are identified as the responsible photorefractive species.

  View details for PubMedID 9804540

• Photorefractive materials for nonvolatile volume holographic data storage SCIENCE Hesselink, L., Orlov, S. S., Liu, A., Akella, A., Lande, D., Neurgaonkar, R. R. 1998; 282 (5391): 1089-1094

  View details for Web of Science ID 000076887700040

• Visualisation of flow with the aid of textures GVC Annual Conference Loser, T., Mewes, D., Levy, Y., Hesselink, L. WILEY-V C H VERLAG GMBH. 1998: 1382–87

  View details for Web of Science ID 000077246400003

• Light-induced absorption of cerium-doped lead barium niobate crystals OPTICS LETTERS Liu, A., Lee, M. K., Hesselink, L., Lee, S. H., Lim, K. S. 1998; 23 (20): 1618-1620

  Abstract

  Tetragonal lead barium niobate (Pb(1-x)Ba(x)Nb(2)O(6);1-x<0.63) crystals are promising photorefractive materials for applications such as holographic data storage. Measurements of light-induced absorption in Ce-doped lead barium niobate (Pb(0.5)Ba(0.5) Nb(2)O(6)) were performed. The induced absorption that was due to the presence of shallow traps was as large as 0.3cm(-1) at 633 nm and exhibited saturation behavior at green-pump intensity greater than 2W/cm(2) . The temporal profile of the dark decay was a double exponential, and the activation energies of the slow- and the fast-decaying components were determined to be 0.16 and 0.3 eV, respectively.

  View details for Web of Science ID 000076582800018

  View details for PubMedID 18091863

• Two-photon apodization in lithium niobate OPTICS LETTERS Lande, D., Orlov, S. S., Hesselink, L. 1998; 23 (17): 1399-1401

  Abstract

  We demonstrate a novel apodization technique for holographic data storage using two-photon recording in stoichiometric lithium niobate. The gating light-intensity profile is used to achieve grating apodization inside the bulk of the crystal during recording in the transmission geometry. Experimental Bragg-selectivity curves and theoretical fits indicate a >20-dB drop in multiplexing cross talk.

  View details for Web of Science ID 000075697400024

  View details for PubMedID 18091798

• One-color one-beam pumping of Er-3+-doped ZBLAN glasses for a three-dimensional two-step excitation display OPTICS LETTERS Honda, T., Doumuki, T., Akella, A., Galambos, L., Hesselink, L. 1998; 23 (14): 1108-1110

  Abstract

  We demonstrate a one-color one-beam pumping method for a three-dimensional two-step excitation fluorescent display with Er(3+) -doped ZBLAN glass. A localized green fluorescent spot is obtained by use of a focused pump-light beam at 979 nm. The quantum efficiency of the two-step excitation fluorescence is investigated in a time-dependent analysis and an experiment with a pulsed pump light.

  View details for Web of Science ID 000074947600014

  View details for PubMedID 18087443

• Photorefractive properties of tungsten bronze ferroelectric lead barium niobate (Pb1-xBaxNb2O6) crystals JOURNAL OF APPLIED PHYSICS Lee, M., Feigelson, R. S., Liu, A., Hesselink, L. 1998; 83 (11): 5967-5972

  View details for Web of Science ID 000075257100054

• Growth of CsLiB6O10 thin films on Si substrate by pulsed laser deposition using SiO2 and CaF2 as buffer layers JOURNAL OF ELECTRONIC MATERIALS Yeo, J. S., Akella, A., HUANG, T. F., Hesselink, L. 1998; 27 (3): 127-131

  View details for Web of Science ID 000072528800006

• Electro-optic and photorefractive two-beam coupling properties of lead barium niobate crystals JOURNAL OF APPLIED PHYSICS Liu, A., Hesselink, L., Lee, M., Feigelson, R. S. 1998; 83 (5): 2826-2830

  View details for Web of Science ID 000072310700063

• Growth of a new photorefractive material: Tungsten-bronze ferroelectric lead barium niobate (Pb1-xBaxNb2O6) 9th International Meeting on Ferroelectricity (IMF-9) Lee, M., Feigelson, R. S., Liu, A., Hesselink, L. KOREAN PHYSICAL SOC. 1998: S1221–S1223

  View details for Web of Science ID 000072212300106

• Synthesis and properties of ferroelectric niobate thin films prepared by pulsed laser deposition for optical waveguide application 9th International Meeting on Ferroelectricity (IMF-9) Yeo, J. S., Hesselink, L. KOREAN PHYSICAL SOC. 1998: S1369–S1371

  View details for Web of Science ID 000072212400016

• Formation and fixing of diffraction gratings in new photorefractive lead barium niobate (Pb1-xBaxNb2O6) crystals 9th International Meeting on Ferroelectricity (IMF-9) Lee, M., Feigelson, R. S., Liu, A., Hesselink, L. KOREAN PHYSICAL SOC. 1998: S427–S429

  View details for Web of Science ID 000072212200008

• Properties of compositional volume grating formation with photoinitiated cationic-ring-opening polymerization Conference on Advanced Optical Memories and Interfaces to Computer Storage Paraschis, L., Sugiyama, Y., Akella, A., Honda, T., Hesselink, L. SPIE - INT SOC OPTICAL ENGINEERING. 1998: 55–61

  View details for Web of Science ID 000078029300008

• Feature comparisons of vector fields using earth mover's distance 9th Annual IEEE Conference on Visualization (VIS 98) Lavin, Y. M., Batra, R., Hesselink, L. ASSOC COMPUTING MACHINERY. 1998: 103-?

  View details for Web of Science ID 000078506400012

• Photorefractive materials for nonvolatile volume holographic storage Science Magazine, American Assoc. Adv. Science Hesselink, L., Orlov, S. 1998; 282 (5391): 1089-94
• Properties of compositional volume grating information with photoinitiated cationic-ring-opening polymerization Advanced Optical Memories and Interfaces to Computer Storage, San Diego, SPIE, The International Society for Optical Engineering Paraschis, Sugiyama, Y., Akella, A., Honda, T., Hesselink, L. 1998; 3468: 55-61
• Synthesis and Properties of Ferroelectric Niobate Thin Films Prepared by Pulsed Laser Deposition for Optical Waveguide Journal of Korean Physical Society Yeo, J., S., Hesselink, L. 1998; 32: S2369-S1371
• Feature comparisons of vector fields using Earth mover’s distance Hesselink, L., Lavin et al, Y. 1998
• Growth of CsLiB6010 thin films on Si substate by pulsed laser deposition using Si02 and CaF2 as buffer layers Journal of Electronic Materials Yeo, J., S., Akella, A., Huang, T., F., Hesselink, L. 1998; 27: 127
• 3D Volumetric Displays by two-photon processes O plus E Honda, T., Hesselink, L. 1998; 20 (9): 1039-1043
• Electro-optic and photorefractie two-beam coupling properties of lead barium niobate crystals Journal of Applied Physics Liu, A., Hesselink, L., Lee, M., Feigelson, Robert, S. 1998; 83: 2826-30
• Flow Visualization with Textures Chemie Ingenieur Technik Loser, T., Mewes, D., Levy, Y., Hesselink, L. 1998; 70: 1382-1387
• Topology Based Methods for Quantitative Comparisons of Vector Fields Transactions of the IEEE Computer Society Batra, R., Kling, K., Hesselink, L. 1998
• Formation and fixing of diffraction gratings in new photorefractive lead barium niobate (Pb/sub 1-x/Ba/sub x/Nb/sub 2/0/sub 6/) crystals Hesselink, L., Lee et al, M. 1998
• Growth of a new photorefractive material; tungsten-bronze ferroelectric lead barium niobate (Ph/sub 1-x/Ba/sub x/Nb/sub 2/O/sub 6/) Hesselink, L., Lee et al, M. 1998
• One-color one-beam pumping of Er3+-doped ZBLAN glasses for a three-dimensional two-step excitation display Optics Letters Honda, T., Doumuki, T., Akella, A., Galambos, L., Hesselink, L. 1998; 23: 1108-1110
• Precompensated two-color digital holographic storage Conference on Advanced Optical Memories and Interfaces to Computer Storage Bjornson, E. S., Hesselink, L. SPIE - INT SOC OPTICAL ENGINEERING. 1998: 14–19

  View details for Web of Science ID 000078029300003

• Growth and properties of KNbO3 thin films prepared by microwave plasma-assisted pulsed laser deposition Symposium on Integrated Thin Films and Applications, at the 99th Annual Meeting of the American-Ceramic-Society Yeo, J. S., HUANG, T. F., Hammond, R. H., Hesselink, L. AMER CERAMIC SOC. 1998: 101–108

  View details for Web of Science ID 000074135200008

• Statistical analysis of polymer volume grating distortions in a holographic digital data storage system Conference on Advanced Optical Memories and Interfaces to Computer Storage Paraschis, L., Sugiyama, Y., Hesselink, L. SPIE - INT SOC OPTICAL ENGINEERING. 1998: 238–247

  View details for Web of Science ID 000078029300027

• Digital holographic storage system incorporating optical fixing OPTICS LETTERS Lande, D., Orlov, S. S., Akella, A., Hesselink, L., Neurgaonkar, R. R. 1997; 22 (22): 1722-1724

  Abstract

  Digital holograms have been written in stoichiometric Pr:LiNbO(3) in a two-color recording scheme, demonstrating what is to our knowledge the first all-optical nondestructive readout of digital data. Using writing light at 800nm and gating light at 476 nm, we stored and retrieved 256-kbit digital data pages with a raw bit-error rate BER of <10(-4) .

  View details for Web of Science ID A1997YF19400021

  View details for PubMedID 18188347

• Resonant two-photon processes for nonvolatile holography in photorefractive crystals under continuous-wave illumination JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Paraschis, L., Bashaw, M. C., Liu, A., Hesselink, L. 1997; 14 (10): 2670-2680

  View details for Web of Science ID A1997YA00300032

• Measurements of OH- absorption and proton activation in Pb1-xBaxNb2O6 crystals with applications to holographic storage PHYSICAL REVIEW B Lee, M., Feigelson, R. S., Liu, A., Hesselink, L., Route, R. K. 1997; 56 (13): 7898-7904

  View details for Web of Science ID A1997YD86600039

• Two-photon holographic recording in aluminosilicate glass containing silver particles OPTICS LETTERS Akella, A., Honda, T., Liu, A. Y., Hesselink, L. 1997; 22 (13): 967-969

  Abstract

  Recording of holographic gratings by 532-nm laser pulses in photochromic bulk aluminosilicate glass containing silver particles is demonstrated. A diffraction efficiency of 1.5% is achieved for readout at the same wavelength. The speed of grating formation as a function of pulse energy suggests that two-photon excitation is responsible for the recording. The light causes bleaching of an absorption peak near 417nm, which corresponds to the excitation of surface plasmons on the silver, and broad darkening throughout the visible to the near infrared. A likely mechanism for the photochromic effect is discussed.

  View details for Web of Science ID A1997XG25300009

  View details for PubMedID 18185721

• Synthesis and characterization of photochromic organic films for holographic recording OPTICS LETTERS Akella, A., Sochava, S. L., Hesselink, L. 1997; 22 (12): 919-921

  Abstract

  Polymer films doped with 2-(5, 5-dimethyl-3-styryl-cyclohex-2-enylidene)-malononitrile chromophore and various sensitizers have been prepared and characterized. The material exhibits high sensitivity in the red region (S=0.26 cm(2)/J at lambda=633 nm), a large dynamic range (Dn=-0.05) , and large transient two-beam coupling gain (G=110 cm(-1)) . Self-diffraction effects, such as energy and phase coupling, and photoinduced scattering are studied.

  View details for Web of Science ID A1997XE10700025

  View details for PubMedID 18185706

• New fluoroindate glass compositions 10th International Symposium on Non-Oxide Glasses Akella, A., DOWNING, E. A., Hesselink, L. ELSEVIER SCIENCE BV. 1997: 1–5

  View details for Web of Science ID A1997XG22100002

• Digital quasi-phase-matched two-color nonvolatile holographic storage APPLIED OPTICS Bjornson, E. S., Bashaw, M. C., Hesselink, L. 1997; 36 (14): 3090-3106

  Abstract

  Unwanted erasure during readout of holographic data can be reduced or eliminated by use of a different wavelength for reading than that which was used for writing. To prevent distortion and Bragg mismatch that would be unacceptable for digital data storage, one can format data to account for the wavelength difference. Techniques to format data and the results of this formatting are presented. Varying the formatting parameters is investigated to optimize diffraction efficiency.

  View details for Web of Science ID A1997WY30700010

  View details for PubMedID 18253315

• Transport modeling of multiple-quantum-well optically addressed spatial light modulators JOURNAL OF APPLIED PHYSICS Smith, S. L., Hesselink, L. 1997; 81 (5): 2076-2088

  View details for Web of Science ID A1997WK08800006

• Observation and thermal fixing of holographic gratings in lead barium niobate crystal OPTICS LETTERS Liu, A. Y., Bashaw, M. C., Hesselink, L., Lee, M., Feigelson, R. S. 1997; 22 (3): 187-189

  Abstract

  We report what we believe to be the first observation of photorefractive gratings in lead barium niobate (Pb(1-x)Ba (x)Nb(2)O>( 6) ; PBN). A diffraction efficiency of 9% and a beam-coupling coefficient of 9 cm(-1) are obtained. After thermal fixing a grating of 0.5% is revealed at room temperature. We can improve this diffraction efficiency by optimizing fixing temperature, timing, and material parameters.

  View details for Web of Science ID A1997WE37600017

  View details for PubMedID 18183144

• The topology of symmetric, second-order 3D tensor fields IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS Hesselink, L., Levy, Y., Lavin, Y. 1997; 3 (1): 1-11

  View details for Web of Science ID A1997WU09900001

• Singularities in nonuniform tensor fields 8th Annual IEEE Conference on Visualization Lavin, Y. M., Levy, Y., Hesselink, L. I E E E, COMPUTER SOC PRESS. 1997: 59–66

  View details for Web of Science ID 000073211800006

• Photorefractive properties of Pb).5Ba0.5Nb206 Lee, M., Liu, Alice, Y., Feigelson, Robert, S., Hesselink, L. 1997
• Methods and Optimization of Photoactivated Recording Orlov, S., S., Akella, A., Liu, A., Hesselink, L. 1997
• Radial inhomogeneties in a-axis grown strontium barium niobate fibers prepared by laser heated pedestal growth technique in different conditions Hesselink, L. 1997
• High Sensitivity Non-volatile Two-Color Recording in Lithium Niobate CLEO/QELS postdeadline paper, Baltimore MD Orlov, S., Akella, A., Hesselink, L., Neurganokar, R., R. 1997
• Growth and properties of KNb03 thin films prepared by microwave plasma-assisted pulsed laser deposition Ceramic Transactions Yeo, J., S., Huang, T., F., Hammond, R., Hesselink, L. 1997
• Digital Holographic Storage – System Incorporating Optical Fixing Optics Letters Lande, D., Orlov, S., S., Akella, A., Hesselink, L. 1997; 22: 1722
• Growth and Characterization of CsLiB6O10 Thin Films Prepared by Pulsed Laser Deposition Materials Research Society Yeo, J., S., Akella, A., Hesselink, L. 1997
• Singularites in Nonuniform Tensor Fields Lavin, Y., Levy, Y., Hesselink, L. 1997
• In-situ reflection high energy electron diffraction studies of ferroelectric niobate thin film growth during pulsed laser deposition Yeo, J., S., Yonezawa, Y., Huang, T., F., Hesselink, L., Harris Jr., J., S. 1997
• Synthesis and characterization of photochromic organic films for hologrpahic recording Optics Letters Akella, A., Sochava, Sergei, L., Hesselink, L. 1997; 22 (12): 919-921
• Digital Quasi-Phasematched Two-Color Nonvolatile Holographic Storage applied Optics, Optical Society of America Bjornson, Eric, S., Bashaw, M., C., Hesselink, L. 1997; 36 (14): 3090-106
• Recent Advances in Digital Holographic Data Storage Hesselink, L. 1997
• Measurement of OH- absorption and proton activation in lead barium niobate (Pb1-xBaxNb2O6) crystals with applications to holographic storage Physical Review B, APS through AIP Lee, M., Liu, Alice, Y., Feigelson, Robert, S., Hesselink, L., Route, Roger, K. 1997; 56 (13): 7898-904
• Visualization of 3-D Tensor Fields Hesselink, L. 1997
• Phase-instabilities, scattering centers in oxide crystals addressed to high density holographic data storage systems Hesselink, L. 1997
• Digital Holographic Store – System incorporating Optical Fixing Optics Letters Lande, D., Orlov, S., S., Akella, A., Hesselink, L. 1997; 22: 1722
• The topology of symmetrtic, second-order 3D tensor fields IEEE Transactions on Visualization and Computer Graphics Hesselink, L., Levy, Y., Lavin, Y. 1997; 3 (1): 1-11
• Organization of data for monochromatic multiplex volume holography JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Bashaw, M. C., Heanue, J. F., Hesselink, L. 1996; 13 (11): 2174-2186

  View details for Web of Science ID A1996VP77000006

• Digital wavelength-multiplexed holographic data storage system OPTICS LETTERS Lande, D., Heanue, J. F., Bashaw, M. C., Hesselink, L. 1996; 21 (21): 1780-1782

  Abstract

  We present a novel digital holographic data storage system based on wavelength multiplexing in 90 degrees geometry, using an automated tunable diode laser and a lithium niobate crystal. The automatic storage and retrieval of a 60-kbyte data file, as well as the limitations and future implementations of the system, are discussed.

  View details for Web of Science ID A1996VP37200025

  View details for PubMedID 19881799

• Inhomogeneities and segregation behavior in strontium-barium niobate fibers grown by laser-heated pedestal growth technique .1. JOURNAL OF CRYSTAL GROWTH Galambos, L., Erdei, S., Tanaka, I., Hesselink, L., Cross, L. E., Feigelson, R. S., Ainger, F. W., Kojima, H. 1996; 167 (3-4): 660-669

  View details for Web of Science ID A1996VN98600038

• Digital holographic storage system incorporating thermal fixing in lithium niobate OPTICS LETTERS Heanue, J. F., Bashaw, M. C., Daiber, A. J., Snyder, R., Hesselink, L. 1996; 21 (19): 1615-1617

  Abstract

  We describe a digital holographic data storage system that uses in situ thermal fixing to achieve nonvolatile readout. The system was used to store and fix 530 holograms representing 1.7 MB of digital data. The system demonstrates that fixing by heating after recording gives adequate performance for multiplex holography in the perpendicular recording geometry. The postrecording heating procedure is preferred over high-temperature recording in the perpendicular geometry to achieve Bragg matching for the entire signal angular bandwidth.

  View details for Web of Science ID A1996VK95000032

  View details for PubMedID 19881743

• Inhomogeneities and segregation behavior in strontium-barium niobate fibers grown by laser-heated pedestal growth technique .2. JOURNAL OF CRYSTAL GROWTH Erdei, S., Galambos, L., Tanaka, I., Hesselink, L., Cross, L. E., Feigelson, R. S., Ainger, F. W., Kojima, H. 1996; 167 (3-4): 670-680

  View details for Web of Science ID A1996VN98600039

• A three-color, solid-state, three-dimensional display SCIENCE Downing, E., Hesselink, L., Ralston, J., Macfarlane, R. 1996; 273 (5279): 1185-1189

  View details for Web of Science ID A1996VE47600027

• Transfer functions based on Bragg detuning effects for image-bearing holograms recorded in photorefractive crystals JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION DEVRE, R., Heanue, J. F., Gurkan, K., Hesselink, L. 1996; 13 (7): 1331-1344

  View details for Web of Science ID A1996UU12400004

• Electric field screening in a multiple-quantum-well optically addressed spatial light modulator APPLIED PHYSICS LETTERS Smith, S. L., Hesselink, L., Partovi, A. 1996; 68 (22): 3117-3119

  View details for Web of Science ID A1996UM64300019

• Optical memory: Introduction by the feature editors APPLIED OPTICS Neifeld, M. A., Psaltis, D., Hesselink, L. 1996; 35 (14): 2345-2345

  View details for Web of Science ID A1996UL34600001

  View details for PubMedID 21085370

• Signal detection for page-access optical memories with intersymbol interference APPLIED OPTICS Heanue, J. F., Gurkan, K., Hesselink, L. 1996; 35 (14): 2431-2438

  Abstract

  We propose a technique for data detection in a two-dimensional page-access optical memory. The technique combines sequence detection by the use of the Viterbi algorithm with decision feedback to improve the bit-error-rate performance in a system corrupted by intersymbol interference. It has an advantage in that it can be operated on a row-by-row basis as data are output from the optical detector. Use of the proposed scheme might ease the design tolerances of the optical components or permit the use of large data pages.

  View details for Web of Science ID A1996UL34600011

  View details for PubMedID 21085379

• Systematic study of the correlation between geometrical disturbances and flow asymmetries AIAA 33rd Aerospace Sciences Meeting Levy, Y., Hesselink, L., Degani, D. AMER INST AERONAUT ASTRONAUT. 1996: 772–77

  View details for Web of Science ID A1996UC61100017

• Digital holographic data storage looks ahead PHOTONICS SPECTRA Hesselink, L., Bashaw, M. C. 1996; 30 (3): 44-?

  View details for Web of Science ID A1996TZ19000022

• Diffraction analysis of layered structures of photorefractive gratings JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION DEVRE, R., Hesselink, L. 1996; 13 (2): 285-295

  View details for Web of Science ID A1996TR25800010

• Holographic storage gets 32 pound million fillip ELECTRONICS WORLD Hesselink, L. 1996: 96-96

  View details for Web of Science ID A1996UD35300010

• Homoepitaxial and heteroepitaxial growth of Sr0.61Ba0.39Nb2O6 thin films by pulsed laser deposition Symposium on Epitaxial Oxide Thin Films II, at the 1995 MRS Fall Meeting Yeo, J. S., YOUDEN, K. E., HUANG, T. F., Hesselink, L., Harris, J. S. MATERIALS RESEARCH SOC. 1996: 225–230

  View details for Web of Science ID A1996BF25N00030

• Segregation and inhomogeneities in photorefractive SBN fibers Photorefractive Fiber and Crystal Devices - Materials, Optical Properties, and Applications II Conference Erdei, S., Galambos, L., Tanaka, I., Hesselink, L., Ainger, F. W., Cross, L. E., Feigelson, R. S. SPIE - INT SOC OPTICAL ENGINEERING. 1996: 168–173

  View details for Web of Science ID A1996BG67S00018

• New Fluoroindate Glass Compositions Akella, A., Downing, E., A., Hesselink, L. 1996
• Growth & Characterization of CsLiB6O10 Thin Films prepared by Pulsed Laser Deposition Yeo, J., S., Akella, A., Hesselink, L. 1996
• Data Detection for Page-Access Optical Memories Gurkan, K., Heanue, J., F., Hesselink, L. 1996
• System Issues in Digital, Phase Code Multiplexed Holographic Data Storage Optical Society of America Annual Meeting, Rochester Catrysse, P., B., Bashaw, M., C., Heanue, J., F., Hesselink, L. 1996
• A Wavelength-Multiplexed Holographic Data Storage System Lande, D., Heanue, J., F., Catrysse, P., Bashaw, M., C., Hesselink, L. 1996
• The Topology of Three-Dimensional Symmetric Tensor Fields Lavin, Y., Levy, Y., Hesselink, L. 1996
• Digital holographic storage sysem incorporating thermal fixing in lithium niobate Optics Letters Heanue, J., F., Bashaw, M., C., Daiber, A., J., Snyder, R., Hesselink, L. 1996; 21 (19): 1615-1617
• Segregation and Inhomogeneities in Photorefractive SBN Fibers Journal of Crystal Growth Sandor, E., Galambos, L., Tanaka, I., Hesselink, L., Ainger, F., W., Cross, L., E. 1996; 2849: 168-173
• Inhomogeneitis and segregation behavior in strontium-barium niobate fibers grown by laser-heated pedestal growth technique Journal of Crystal Growth, Elsevier, Part II Galambos, L., Hesselink, L., Feigelson, Robert, S., Erdei, S., Cross, L., E., Ainger, F., W. 1996; 167 (3-4): 670-6809
• A Systematic Study of the Correlation Between Geometrical Distrubances and Flow Asymmetries Levy, Y., Hesselink, L., Degani, D. 1996
• Inhomogeneitis and segregation behavior in strontium-barium niobate fibers grown by laser-heated pedestal growth technique Journal of Crystal Growth, Elsevier, Part I Galambos, L., Hesselink, L., Feigelson, Robert, S., Erdei, S., Cross, L., E., Ainger, F., W. 1996; 167 (3-4): 670-6809
• Segregation and Inhomogeneities in Photorefractive SBN Fibers Erdei, S., Galambos, L., Tanaka, I., Hesselink, L., Ainger, F., W., Cross, L., E. 1996
• A laser-diode driven, three-color, solid state 3-D display Hesselink, L. 1996
• Holographic digital data storage systems 17th Congress of the International-Commission-for-Optics - Optics for Science and New Technology Hesselink, L., Heanue, J. F., Bashaw, M. C. SPIE-INT SOC OPTICAL ENGINEERING. 1996: 410–413

  View details for Web of Science ID A1996BG45E00200

• SPARSE SELECTION OF REFERENCE BEAMS FOR WAVELENGTH-MULTIPLEXED AND ANGULAR-MULTIPLEXED VOLUME HOLOGRAPHY (VOL 12, PG 1671, 1995) JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Heanue, J. F., Bashaw, M. C., Hesselink, L. 1995; 12 (12): 2767-2767

  View details for Web of Science ID A1995TJ42400026

• CHANNEL CODES FOR DIGITAL HOLOGRAPHIC DATA-STORAGE JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Heanue, J. F., Bashaw, M. C., Hesselink, L. 1995; 12 (11): 2432-2439

  View details for Web of Science ID A1995TA61800006

• CODED-WAVELENGTH MULTIPLEX VOLUME HOLOGRAPHY OPTICS LETTERS Bashaw, M. C., SINGER, R. C., Heanue, J. F., Hesselink, L. 1995; 20 (18): 1916-1918

  Abstract

  We introduce the technique of coded-wavelength multiplex holography. We encode each wavelength with a discrete angular spectrum of plane waves, so that the total number of multiplexed holographic pages equals the number of wavelengths multiplied by the number of discrete wave vectors at each wavelength. Encoding with different propagation angles further permits one to utilize the properties of grating degeneracy to assemble an image from a mosaic of smaller images and to multiplex such images at different wavelengths.

  View details for Web of Science ID A1995RU36700028

  View details for PubMedID 19862201

• ENCRYPTED HOLOGRAPHIC DATA-STORAGE BASED ON ORTHOGONAL-PHASE-CODE MULTIPLEXING APPLIED OPTICS Heanue, J. F., Bashaw, M. C., Hesselink, L. 1995; 34 (26): 6012-6015

  Abstract

  We describe an encrypted holographic data-storage system that combines orthogonal-phase-code multiplexing with a random-phase key. The system offers the security advantages of random-phase coding but retains the low cross-talk performance and the minimum code storage requirements typical in an orthogonal-phase-code-multiplexing system.

  View details for Web of Science ID A1995RR88300016

  View details for PubMedID 21060439

• PR3+-DOPED FLUORIDE GLASSES JOURNAL OF NON-CRYSTALLINE SOLIDS Seeber, W., DOWNING, E. A., Hesselink, L., Fejer, M. M., Ehrt, D. 1995; 189 (3): 218-226

  View details for Web of Science ID A1995RT87100003

• BROAD-BAND DYNAMIC, HOLOGRAPHICALLY SELF-RECORDED, AND STATIC HEXAGONAL SCATTERING PATTERNS IN PHOTOREFRACTIVE KNBO3-FE OPTICAL ENGINEERING Kukhtarev, N. V., Kukhtareva, T., Caulfield, H. J., Banerjee, P. P., Yu, H. L., Hesselink, L. 1995; 34 (8): 2261-2265

  View details for Web of Science ID A1995RN19900012

• SPARSE SELECTION OF REFERENCE BEAMS FOR WAVELENGTH-MULTIPLEXED AND ANGULAR-MULTIPLEXED VOLUME HOLOGRAPHY JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Heanue, J. F., Bashaw, M. C., Hesselink, L. 1995; 12 (8): 1671-1676

  View details for Web of Science ID A1995RK71000007

• EVOLUTION AND PROPAGATION OF GRATING ENVELOPES DURING ERASURE IN BULK PHOTOREFRACTIVE MEDIA JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Jeganathan, M., Bashaw, M. C., Hesselink, L. 1995; 12 (7): 1370-1383

  View details for Web of Science ID A1995RH11900024

• ANOMALOUS ASYMMETRIES IN FLOWS GENERATED BY ALGORITHMS THAT FAIL TO CONSERVE SYMMETRY AIAA JOURNAL Levy, Y., Hesselink, L., Degani, D. 1995; 33 (6): 999-1007

  View details for Web of Science ID A1995RA33200004

• EFFECT OF APPLIED ELECTRIC-FIELDS ON THE WRITING AND THE READOUT OF PHOTOREFRACTIVE GRATINGS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS DEVRE, R., Jeganathan, M., Wilde, J. P., Hesselink, L. 1995; 12 (4): 600-614

  View details for Web of Science ID A1995QR25500010

• Epitaxial multilayers of (Sr,Ba)Nb2O6 and conducting films on (001) MgO substrates Symposium on Film Synthesis and Growth Using Energetic Beams HUANG, T. F., YOUDEN, K. E., THONY, S. S., Hesselink, L., Harris, J. S. MATERIALS RESEARCH SOCIETY. 1995: 79–84

  View details for Web of Science ID A1995BE29R00012

• Materials for Digital Holographic Data Storage Hesselink, L. 1995
• Holographic Storage & Retrieval of Digital Data Hesselink, L. 1995
• Volume Holographic Storage & Retrieval of Digital Data Hesselink, L. 1995
• Optical Signal Processing & Holography Hesselink, L. 1995
• Holographic Storage Materials & Systems Hesselink, L. 1995
• Soliton-like propagation of the grating envelope during readout of photorefractive gratings Jeganathan, M., Bashaw, Matthew, C., Hesselink, L. 1995
• Encrypted data storage based on orthogonal-phase-code multiplexing in volume holography Heanue, John, F., Bashaw, Matthew, C., Hesselink, L. 1995
• Holographic Data Storage Systems and Photorefractive Materials Hesselink, L. 1995
• Pr/sup 3+/-doped fluoride glasses Journal of Non-Crystalline Solids Seeber, W., Downing, E., A., Hesselink, L., Fejer, M., M., Ehrt, D. 1995; 189 (3): 218-26
• Geometric- and mosaic-wavelength multiplexing for volume-holographic data storage Bashaw, M.C., Singer, R., C., Heanue, J., F., Hesselink, L. 1995
• Epitaxial Multilayers of (Sr,Ba) Nb2O6 and Conducting Films on (001) MgO Substrates Tang, T., F., Youden, K., E., Schwyn, Thöny, S., Hesselink, L., Harris Jr., J., S. 1995
• The Topology of Symmetric, Second-Order Tensor Fields Computers in Physics Hesselink, L., Levy, Y., Lavin, Y. 1995; 9 (3): 304-11
• Effect of applied electric fields on the writings and the readout of photorefractive gratings JOSA B De Vré, R., Jeganathan, M., Wilde, Jeffrey, P., Hesselink, L. 1995; 12 (4): 600-614
• Visualization and Topology of Vector-Tensor Fields IEEE Computer Society, IEEE Visualization '95, tutorial Hesselink, L. 1995
• A Survey of the State of the Art in Nonvolatile Data Storage SPIE Hesselink, L., Jeganathan, M. 1995
• Materials for Digital Holographic Data Storage Hesselink, L. 1995
• Channel codes for digital holographic data storage Journal Optical Society of America A Heanue, J., F., Bashaw, M., C., Hesselink, L. 1995; 12 (ll): 2432-2439
• Data storage based on orthogonal phase code multiplexing in volume holography Applied Opitcs Bashaw, M., C., Heanue, J., F., Hesselink, L. 1995
• Review of Systems Design Issues of Digital Holographic Memories Hesselink, L. 1995
• Topology of Tensor Fields Hesselink, L. 1995
• Diffraction properties of a reflection photorefractive hologram: comments Applied Optics De Vré, R., Jeganathan, M., Hesselink, L. 1995; 34 (14): 2590-2592
• Geometric- and mosaic-wavelength multiplexing for volume holographic storage Singer, M., C., Bashaw, M., C., Heanue, J., F., Hesselink, L. 1995
• Growth of multi-layers of (Sr, Ba) Nb206 and conducting films on (001) MgO substrates Huang, T., F., Schwyn-Thöny, S., Youden, Katharine, E., Hesselink, L., Harris Jr., J., S. 1995
• Holographic Systems Hesselink, L. 1995
• Sparse Selection of Reference Beams for Wavelength- and Angular-miltiplexed Volume Holograpy JOSA A Heanue, J., F., Bashaw, M., C., Hesselink, L. 1995; 12 (8): 1671-1676
• Visualizing Time-Varying Data Hesselink, L. 1995
• Review of Systems Design Issues of Digital Holographic Memories, Hesselink, L. 1995
• Volume holographic and retrieval of digital information Heanue, John, F., Bashaw, Matthew, C., Hesselink, L. 1995
• Holographic Storage & Retrieval of Digital Data Hesselink, L. 1995
• Critical Issues for Digital Volume Holographic Storage Hesselink, L. 1995
• Volume Holographic Storage & Retrieval of Digital Data Hesselink, L. 1995
• Transient current response of photorefractive quantum-well devices Smith, S. L., Hesselink, L., Partovi, A. 1995
• Encrypted holographic data storage based on orthogonal-phase-code multiplexing Applied Optics Bashaw, M., C., Heanue, J., F., Hesselink, L. 1995; 34 (26): 6012-6015
• Topology of Tensor Fields Hesselink, L. 1995
• Digital Volume Holographic Data Storge Device Hesselink, L. 1995
• Volume holographic storage and retrieval of digital information Heanue, J., F., Bashaw, M., C., Hesselink, L. 1995
• Digital Volume Holographic Data Storage Devices Hesselink, L. 1995
• Topology of second-order tensor fields Computers in Physics Hesselink et al, L. 1995; 9 (3): 304-11
• Pulsed laser deposition of epitaxial Sr0.61Ba0.39Nb2O6 thin films for waveguide applications Symposium on Ferroelectric Thin Films IV, at the 1994 MRS Fall Meeting YOUDEN, K. E., THONY, S. S., Hesselink, L., Harris, J. S. MATERIALS RESEARCH SOC. 1995: 173–178

  View details for Web of Science ID A1995BD57U00024

• INSTANTANEOUS 3-DIMENSIONAL CONCENTRATION MEASUREMENTS IN THE SELF-SIMILAR REGION OF A ROUND HIGH-SCHMIDT-NUMBER JET JOURNAL OF FLUID MECHANICS Yoda, M., Hesselink, L., Mungal, M. G. 1994; 279: 313-350

  View details for Web of Science ID A1994PW60200013

• GROWTH OF EPITAXIAL STRONTIUM BARIUM NIOBATE THIN-FILMS BY PULSED-LASER DEPOSITION APPLIED PHYSICS LETTERS THONY, S. S., YOUDEN, K. E., Harris, J. S., Hesselink, L. 1994; 65 (16): 2018-2020

  View details for Web of Science ID A1994PM42900013

• WAVELENGTH SELECTION FOR TRUE-COLOR HOLOGRAPHY APPLIED OPTICS PEERCY, M. S., Hesselink, L. 1994; 33 (29): 6811-6817

  Abstract

  We discuss wavelength selection for true-color holography by investigating the sampling nature of the holographic process. During holographic recording the chosen wavelengths point sample the surfacereflectance functions of the objects in a scene. To understand the effect of this sampling on color perception, we study the tristimulus values of points in the reconstructed hologram. The sampling results in the holographic process being mathematically equivalent to integral approximations for the tristimulus integrals. By selecting efficient approximations, we infer wavelengths to use in color holography. Our analysis not only suggests wavelengths for the usual three-color holography but also suggests the use of four or more wavelengths to improve color reproduction in holography.

  View details for Web of Science ID A1994PL22600011

  View details for PubMedID 20941226

• ANALYSIS AND DEMONSTRATION OF AN INTEGRATED OPTICAL SWITCH BASED ON DYNAMIC FREE-CARRIER GRATINGS - A BLUEPRINT FOR A 100X100 ELEMENT SWITCH ARRAY IEEE JOURNAL OF QUANTUM ELECTRONICS Aronson, L. B., Hesselink, L. 1994; 30 (10): 2332-2349

  View details for Web of Science ID A1994PM81300017

• TRAPPING THE GRATING ENVELOPE IN BULK PHOTOREFRACTIVE MEDIA OPTICS LETTERS Jeganathan, M., Bashaw, M. C., Hesselink, L. 1994; 19 (18): 1415-1417

  Abstract

  We introduce the concept of traveling grating envelopes to study the erasure dynamics in bulk photorefractive media. This new technique provides considerable physical insight into the observed photorefractive transients. We propose and demonstrate experimentally, in a Ce-doped SBN:60 crystal, two novel ways of extending the grating lifetime by trapping the grating envelope inside the medium. The incident beam ratio and the readout geometry have the largest effect on how long the grating can be read out.

  View details for Web of Science ID A1994PJ26400013

  View details for PubMedID 19855537

• CROSS-TALK CONSIDERATIONS FOR ANGULAR AND PHASE-ENCODED MULTIPLEXING IN VOLUME HOLOGRAPHY JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Bashaw, M. C., Heanue, J. F., Aharoni, A., Walkup, J. F., Hesselink, L. 1994; 11 (9): 1820-1836

  View details for Web of Science ID A1994PE85300039

• ANALYTICAL MODEL FOR GRATING DYNAMICS IN SURFACE-CHARGE-DOMINATED POCKELS READOUT OPTICAL MODULATOR DEVICES JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Smith, S. L., Hesselink, L. 1994; 11 (9): 1878-1885

  View details for Web of Science ID A1994PE85300046

• ANALYSIS OF PHOTOREFRACTIVE STRATIFIED VOLUME HOLOGRAPHIC OPTICAL-ELEMENTS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS DEVRE, R., Hesselink, L. 1994; 11 (9): 1800-1808

  View details for Web of Science ID A1994PE85300036

• THEORY OF 2-CENTER TRANSPORT IN PHOTOREFRACTIVE MEDIA FOR LOW-INTENSITY, CONTINUOUS-WAVE ILLUMINATION IN THE QUASI-STEADY-STATE LIMIT JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Bashaw, M. C., Jeganathan, M., Hesselink, L. 1994; 11 (9): 1743-1757

  View details for Web of Science ID A1994PE85300029

• DIFFRACTION FROM THERMALLY FIXED GRATINGS IN A PHOTOREFRACTIVE MEDIUM - STEADY-STATE AND TRANSIENT ANALYSIS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Jeganathan, M., Hesselink, L. 1994; 11 (9): 1791-1799

  View details for Web of Science ID A1994PE85300035

• VOLUME HOLOGRAPHIC STORAGE AND RETRIEVAL OF DIGITAL DATA SCIENCE Heanue, J. F., Bashaw, M. C., Hesselink, L. 1994; 265 (5173): 749-752

  Abstract

  A multiple page fully digital holographic data storage system is demonstrated. This system is used to store and retrieve digital image and compressed video data with a photorefractive crystal. Architecture issues related to spatio-rotational multiplexing and novel error-correcting encoding techniques used to achieve low bit-error rates are discussed.

  View details for Web of Science ID A1994PA37200023

  View details for PubMedID 17736271

• RECALL OF LINEAR-COMBINATIONS OF STORED DATA PAGES BASED ON PHASE-CODE MULTIPLEXING IN VOLUME HOLOGRAPHY OPTICS LETTERS Heanue, J. F., Bashaw, M. C., Hesselink, L. 1994; 19 (14): 1079-1081

  Abstract

  We describe a novel method for the recall of linear combinations of stored data pages in a volume holographic memory based on phase-code multiplexing. Recall is demonstrated by use of a compound phase-and-amplitude spatial light modulator in the reference beam path.

  View details for Web of Science ID A1994NW48300023

  View details for PubMedID 19844539

• EFFECT OF APPLIED FIELDS ON THE BRAGG CONDITION AND THE DIFFRACTION EFFICIENCY IN PHOTOREFRACTIVE CRYSTALS OPTICS LETTERS DEVRE, R., Jeganathan, M., Wilde, J. P., Hesselink, L. 1994; 19 (12): 910-912

  Abstract

  We explore theoretically and experimentally how application of an electric field to a photorefractive crystal affects the recording and the readout of holograms. We consider, for the first time to our knowledge, the effects of fringe bending caused by nonlinear two-wave mixing on the change in Bragg condition and diffraction efficiency as a function of the applied electric field. Practical performance limitations for holographic data storage and image amplification are discussed.

  View details for Web of Science ID A1994NQ38600020

  View details for PubMedID 19844485

• RESEARCH ISSUES IN VECTOR AND TENSOR FIELD VISUALIZATION 1993 ACM/IEEE 2nd Symposium on Solid Modeling and Applications Hesselink, L., Post, F. H., VANWIJK, J. J. IEEE COMPUTER SOC. 1994: 76–79

  View details for Web of Science ID A1994MY70200014

• SUBMICROMETER DEFECT DETECTION IN PERIODIC STRUCTURES BY PHOTOREFRACTIVE HOLOGRAPHY - SYSTEM-DESIGN AND PERFORMANCE APPLIED OPTICS Uhrich, C., Hesselink, L. 1994; 33 (5): 744-757

  Abstract

  We have built an adaptive system capable of detecting submicrometer defects in periodic structures by using real-time holography in photorefractive crystals. We summarize the design and optimization of the defect-enhancement system. We present representative results of 0.2- to 0.5-µm diameter defect detection on two different periodic substrates: chrome-on-glass masks and patterned silicon wafers. On patterned silicon we detect 94% of the 0.5-µm diameter defects with three false positives, while inspecting an area greater than 1 mm(2) in 20 s or less. The throughput on the glass masks is somewhat less. To the best of our knowledge, these defects have an area 100 times smaller than those previously detected with any real-time holographic technique.

  View details for Web of Science ID A1994MY85300002

  View details for PubMedID 20862070

• Ultra precision machining: Quiet hydraulics and computer support research 1995 NSF Design and Manufacturing Grantees Conference DeBra, D. B., Parkinson, B. W., Hesselink, L., Binford, T. O., Peirce, S., Frants, L., Huang, J. J., Kietzman, J., Velezmoro, M. SOC MANUFACTURING ENGINEERS. 1994: 313–314

  View details for Web of Science ID A1994BG45A00153

• Critical issues in volume holographic data storage Bashaw, M., C., Heanue, J., F., Hesselink, L. 1994
• The Topology of Symmetric, Second-Order Tensor Fields Delmarcelle, T., Hesselink, L. 1994
• Instantaneous Three-Dimensional Concentration Measurements in the Self-Similar Region of a Round High Schmidt Number Jet Journal of Fluid Mechanics Yoda, M., Hesselink, L., Mungal, M., G. 1994; 279: 3l3-50
• Theory of two-center transport in photorefractive media for low-intensity, continuous-wave illumination in the Quasi-Steady-State Limit Journal of Optical Society of America B Bashaw, M., C., Jeganathan, M., Hesselink, L. 1994; 11 (9): 1743-1757
• Materials for Holographic Data Storage Hesselink, L. 1994
• Impacts of Materials Properties on Multiplex Holographic Data Storage Bashaw, M., C., Hesselink, L. 1994
• Electric field control of image-bearing volume holograms stored in photorefractive media Wilde, J., P., De Vré, R., Jeganathan, M., Hesselink, L. 1994
• Solid-State Three-Dimensioanl Volumetric Display Downing, E., A., Hesselink, L. 1994
• A Solid-State Three-Dimensional Upconversion Display Downing, E., A., Hesselink, L. 1994
• Visualization of vector and tensor data sets 1993 ONR Workshop on Scientific Visualization Hesselink, L., Delmarcelle, T. Springer-Verlag, published in Scientific Visualization, Academic Press. 1994: 419–433
• Analysis of Photorefractive Stratified Volume Holographic Optical Elements Journal of Optical Sociey of America (JOSA B) De Vré, R., Hesselink, L. 1994: 1800-180-8
• Diffraction from Thermally Fixed Gratings in Photorefractie Medium - Steady State and Transient Analysis JOSA B Special Issue on Photorefractive Effects, Materials and Devices Jeganathan, M., Hesselink, L. 1994; 11 (9): 1791-99
• Volume Holographic Storage and Retrieval of Digital Image and Video Data Science Magazine Heanue, J., F., Bashaw, M., C., Hesselink, L. 1994; 265: 749-752
• Wavelength Selection for True Color Holography Applied Optics Peercy, Mark, S., Hesselink, L. 1994; 33 (29): 6811-17
• Prolonged readout of photorefractive holograms by replay at a longer wavelength Aharoni, A., Jeganathan, M., Bashaw, M., C., Hesselink, L. 1994
• Photorefractive Material Requirements for Holographic Data Storage Bashaw, M., C., Heanue, J., F., Hesselink, L. 1994
• Two-tone approach for prolonged readout of multiplexed photorefractive holograms Aharoni, A., Bashaw, M., C., Hesselink, L. 1994
• A unified framework for flow visualization in Computer Visualization Delmarcelle, T., Hesselink, L. edited by Gallagher, R. CRC Press. 1994: 129–170
• A System for Interactive Full Spectral Rendering. Siggraph Hesselink, L., Peercy, Mark, S., Zhu, Benjamin, M., Baum, Daniel, R. 1994
• A digital holographic data storage system Hesselink, L., Heanue, J., F., Bashaw, M., C. 1994
• Solid-state three-dimensional computer display Downing, E., A., Hesselink, L. 1994
• Storage of Digital Image and Video Data in a Photorefractive Based Holographic Data Storage System Heanue, J., F., Bashaw, M., C., Hesselink, L. 1994
• Analysis and Demonstration of an Integrated-Optical Switch Based on Dynamic Free Carrier Gratings: A Blueprint for a 100 x 100 Element Switch Array IEEE Journal of Quantum Electronics Aronson, Lewis, B., Hesselink, L. 1994; 30 (10): 2332-49
• Sub-Micron defect enhancement in Periodic Structures Using Photorefractive Holography: system design and performance Applied Optics Uhrich, C., Hesselink, L. 1994; 33: 744-57
• Analytical model for grating dynamics in surface-charge-dominated Pockels readout otpical modulator devices Journal of Optical Society of America (JOSA B) Smith, S., L., Hesselink, L. 1994; 11: 1743
• Complementary Gratings for Multiplex Holography in Photorefractive Media Bashaw, M., C., Gurkan, K., Heanue, J., F., Hesselink, L. 1994
• High Resolution Time-Resolved Optical Absorption Tomography Daiber, A., J., Hesselink, L. 1994
• Digital N4 & N5 Free Space Optoelectronic ROM, Photonics for Processors, Neural Networks, and Memories II Guilfoyle, P., S., Hessenbruch, J., M., Hesselink, L. 1994
• Growth and Applications of Photorefractive Films OSA De Vré, R., Youden, K., E., Hesselink, L. 1994
• High Resolution, High Speed Optical Tomography Facility Daiber, A., J., Hesselink, L. 1994
• Theory of Two-Center Transport in Photorefractive Media for Low-Intensity, Continuous-Wave Illumination in the quasi-steady-state limit journal of the Optical Society of America B (Optical Physics) Bashaw, M., C., Jeganathan, M., Hesselink, L. 1994; 11 (9): 1743-57
• Crosstalk considerations for angular and phase-encoded multiplexing in volume holography Journal of Optical Society of America B Bashaw, M., C., Heanue, J., F., Aharoni, A., Walkup, J., F., Hesselink, L. 1994; 11 (9): 1820-36
• Decision Feedback Viterbi Detection for Page-Access Optical Memories. OL Heanue, J., F., Gurkan, K., Hesselink, L. 1994
• A 2-TONE APPROACH FOR PROLONGED READOUT OF MULTIPLEXED PHOTOREFRACTIVE HOLOGRAMS 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications Aharoni, A., Bashaw, M. C., Hesselink, L. IEEE. 1994: 188–190

  View details for Web of Science ID A1994BC30X00064

• THE TOPOLOGY OF SYMMETRIC, 2ND-ORDER TENSOR FIELDS Visualization 94 Conference DELMARCELLE, T., Hesselink, L. I E E E, COMPUTER SOC PRESS. 1994: 140-?

  View details for Web of Science ID A1994BC60D00023

• RECALL OF LINEAR COMBINATIONS OF STORED DATA PAGES USING PHASE CODE MULTIPLEXING IN VOLUME HOLOGRAPHY 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications Heanue, J. F., Bashaw, M. C., Hesselink, L. IEEE. 1994: 427–429

  View details for Web of Science ID A1994BC30X00144

• A SOLID-STATE 3-DIMENSIONAL UPCONVERSION DISPLAY 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications DOWNING, E. A., Hesselink, L., Macfarlane, R. M. IEEE. 1994: 409–411

  View details for Web of Science ID A1994BC30X00138

• CROSSTALK CONTROL FOR MULTIPLEX HOLOGRAPHY 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications Bashaw, M. C., Heanue, J. F., Hesselink, L. IEEE. 1994: 224–226

  View details for Web of Science ID A1994BC30X00076

• WAVELENGTH SELECTION FOR COLOR-HOLOGRAPHY Conference on Practical Holography VIII PEERCY, M. S., Hesselink, L. SPIE - INT SOC OPTICAL ENGINEERING. 1994: 108–118

  View details for Web of Science ID A1994BA43R00013

• IMPACT OF MATERIALS PROPERTIES ON MULTIPLEX HOLOGRAPHIC DATA-STORAGE Conference on Practical Holography VIII Bashaw, M. C., Hesselink, L. SPIE - INT SOC OPTICAL ENGINEERING. 1994: 132–143

  View details for Web of Science ID A1994BA43R00015

• EFFECT OF SELF-DIFFRACTION ON ERASURE DYNAMICS DURING READOUT AT DIFFERENT WAVELENGTHS AND GEOMETRIES IN PHOTOREFRACTIVE MATERIALS 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications Jeganathan, M., Bashaw, M. C., Aharoni, A., Hesselink, L. IEEE. 1994: 183–184

  View details for Web of Science ID A1994BC30X00062

• PHASE-CONJUGATE REPLAY FOR A-AXIS STRONTIUM BARIUM NIOBATE SINGLE-CRYSTAL FIBERS OPTICS LETTERS Bashaw, M. C., Aharoni, A., Hesselink, L. 1993; 18 (23): 2059-2061

  View details for Web of Science ID A1993MJ09900023

  View details for PubMedID 19829491

• OPTICAL MEMORIES IMPLEMENTED WITH PHOTOREFRACTIVE MEDIA OPTICAL AND QUANTUM ELECTRONICS Hesselink, L., Bashaw, M. C. 1993; 25 (9): S611-S661

  View details for Web of Science ID A1993MB02600005

• VISUALIZING 2ND-ORDER TENSOR-FIELDS WITH HYPERSTREAMLINES IEEE COMPUTER GRAPHICS AND APPLICATIONS DELMARCELLE, T., Hesselink, L. 1993; 13 (4): 25-33

  View details for Web of Science ID A1993LJ99900007

• LIMITATIONS OF PHASE-CONJUGATE REPLAY IN VOLUME-HOLOGRAPHIC PHASE-DISTURBING MEDIA OPTICS LETTERS Bashaw, M. C., Aharoni, A., Hesselink, L. 1993; 18 (9): 741-743

  Abstract

  We examine the consequences of permanent phase distortions on the replay of transmission volume holograms with a phase-conjugated reference wave. In the absence of Bragg degeneracies and significant Bragg mismatch, for negligible dispersion in the spatial frequency response and for negligible variation in obliquity, phase-conjugated reference waves compensate for the effects of phase distortions and permit cross-talk-free multiplexing by using orthogonal reference waves. Spatial frequency dispersion, however, is a source of image distortion and cross talk.

  View details for Web of Science ID A1993KY94200025

  View details for PubMedID 19802258

• DISTORTION-FREE MULTIPLEXED HOLOGRAPHY IN STRIATED PHOTOREFRACTIVE MEDIA APPLIED OPTICS Aharoni, A., Bashaw, M. C., Hesselink, L. 1993; 32 (11): 1973-1982

  Abstract

  Growth-induced striations in photorefractive media constitute phase gratings that scatter transmitted light and therefore degrade the quality of reconstructed images in holographic applications. A simple angular multiplexed holographic memory arrangement in a striated strontium barium niobate sample is considered. For forward-propagating reconstruction the striations distort the readout images and introduce ghost images. For counterpropagating readout, inhomogeneous image reconstruction and interimage cross talk can occur. We investigate these effects experimentally for different reconstruction methods and demonstrate the cross talk and the ghost images with a simple model based on coupled-wave theory. Readout with a counterpropagating plane wave eliminates the ghost images and the distortions but suffers degradation from cross talk and inhomogeneous image intensity. Only reconstruction with a phase conjugate of the transmitted reference beam eliminates cross talk and distortions. The model indicates that negligible material dispersion is a necessary requirement for high-quality phaseconjugation readout.

  View details for Web of Science ID A1993KX26800016

  View details for PubMedID 20820332

• INTEGRATED-OPTICAL SWITCH ARRAYS IN GAAS BASED ON ELECTRICALLY CONTROLLED DYNAMIC FREE CARRIER GRATINGS APPLIED PHYSICS LETTERS Aronson, L. B., Hesselink, L. 1993; 62 (5): 449-451

  View details for Web of Science ID A1993KJ72600006

• VOLUMETRIC VISUALIZATION TECHNIQUES FOR FLUID-MECHANICS International Seminar on Imaging in Transport Processes Hesselink, L., Ning, P., DELMARCELLE, T. BEGELL HOUSE, INC. 1993: 3-?

  View details for Web of Science ID A1993BZ49S00001

• CAPACITY CONSIDERATIONS FOR MULTIPLEXED HOLOGRAPHIC OPTICAL-DATA STORAGE CONF ON PRACTICAL HOLOGRAPHY 7 : IMAGING AND MATERIALS Aharoni, A., Bashaw, M. C., Hesselink, L. SPIE - INT SOC OPTICAL ENGINEERING. 1993: 56–65

  View details for Web of Science ID A1993BZ36J00008

• Transport modeling of multiple quantum well photorefractive devices Smith, S., L., Hesselink, L. 1993
• Dichromatic Color Representations for Complex Display Systems Peercy, Mark, S., Hesselink, L. 1993
• Volumetric visualization techniques for fluid mechanics Hesselink, L., Ning, P., Delmarcelle, T. edited by Sideman, S., Hijikata, K. 1993
• Holographic Data Storage Implemented with Photorefractives Intermag '93 - International Magnetism, Stockholm Hesselink, L. 1993
• Holographic Data Storage Optical Society of America, Toronto, Canada Hesselink, L. 1993
• Combined effects of thermal fixing and beam coupling in photorefractive media Jeganathan, M., Hesselink, L. 1993
• Volumetric visualization techniques for fluid mechanics Hesselink, L., Ning, P., Delmarcelle, T. 1993
• Visualization and Feature Extraction of Tensor Datasets U.S. National Congress on Computational Mechanics, Washington, D.C. Hesselink, L. 1993
• Holographic Data Storage Systems Implemented with Photorefractive Materials Leos '93 Annual Meeting Hesselink, L. 1993
• Holographic Data Storage Systems Hesselink, L. 1993
• Visualizing second-order tensor fields with hyperstreamlines IEEE Computer Graphics and Applications, Special issue on scientific visualization. Delmarcelle, T., Hesselink, L. 1993; 13 (4): 25-33
• Holographic data storage systems implemented with photorefractive materials Hesselink, L., Bashaw, M., C. 1993
• Holographic Data Storage Systems Implemented with Photorefractive Materials Research Trends in Nonlinear and Quantum Optics, La Jolla, CA Hesselink, L. 1993
• DICHROMATIC COLOR REPRESENTATIONS FOR COMPLEX DISPLAY SYSTEMS Visualization 93, the 4th Annual IEEE Conference on Visualization PEERCY, M. S., Hesselink, L. I E E E, COMPUTER SOC PRESS. 1993: 212-?

  View details for Web of Science ID A1993BZ58G00027

• HOLOGRAPHIC DATA-STORAGE SYSTEMS IMPLEMENTED WITH PHOTOREFRACTIVE MATERIALS 6th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society (LEOS 93) Hesselink, L. I E E E. 1993: 82–83

  View details for Web of Science ID A1993BA47C00036

• FAST VOLUME RENDERING OF COMPRESSED DATA Visualization 93, the 4th Annual IEEE Conference on Visualization Ning, P., Hesselink, L. I E E E, COMPUTER SOC PRESS. 1993: 11-?

  View details for Web of Science ID A1993BZ58G00001

• QUANTITATIVE IMAGE-PROCESSING IN FLUID-MECHANICS 2ND WORLD CONGRESS ON EXPERIMENTAL HEAT TRANSFER, FLUID MECHANICS AND THERMODYNAMICS Hesselink, L., Helman, J., Ning, P. ELSEVIER SCIENCE INC. 1992: 605–16

  View details for Web of Science ID A1992JN63300004

• ALLEVIATION OF IMAGE DISTORTION DUE TO STRIATIONS IN A PHOTOREFRACTIVE MEDIUM BY USING A PHASE-CONJUGATED REFERENCE WAVE OPTICS LETTERS Bashaw, M. C., Aharoni, A., Hesselink, L. 1992; 17 (16): 1149-1151

  Abstract

  Growth-induced striations in photorefractive media scatter transmitted light, degrading their performance in holographic applications. We model this phenomenon by considering the striations to be a permanent hologram within a medium and compare it with experimental results in a striated strontium barium niobate crystal. We show that the construction of the phase-conjugate signal beam by a phase conjugate of the transmitted reference beam alleviates the effects of distortions that are due to striations.

  View details for Web of Science ID A1992JG55500017

  View details for PubMedID 19794747

• SUBMICROMETER DEFECT ENHANCEMENT IN PERIODIC STRUCTURES BY USING PHOTOREFRACTIVE HOLOGRAPHY OPTICS LETTERS Uhrich, C., Hesselink, L. 1992; 17 (15): 1087-1089

  Abstract

  We present a defect-enhancement system capable of detecting submicrometer defects on opaque periodic structures using real-time holography in photorefractive crystals. We detect 0.5-microm defects with ~90% success rate and 0.3-microm defects with >85% success rate while inspecting an area greater than 1 mm(2) in real time. To our knowledge, these defects have an area 100 times smaller than those previously detected with any real-time holographic technique.

  View details for Web of Science ID A1992JE80200018

  View details for PubMedID 19794728

• ELECTRIC-FIELD-CONTROLLED DIFFRACTION IN PHOTOREFRACTIVE STRONTIUM BARIUM NIOBATE OPTICS LETTERS Wilde, J. P., Hesselink, L. 1992; 17 (12): 853-855

  View details for Web of Science ID A1992HX96300005

  View details for PubMedID 19794652

• ANALYSIS AND DESIGN OF AN ANAMORPHIC OPTICAL PROCESSOR FOR SPECKLE METROLOGY AND VELOCIMETRY APPLIED OPTICS Collicott, S. H., Hesselink, L. 1992; 31 (10): 1646-1659

  Abstract

  Two-dimensional velocity or displacement fields that are recorded as double-exposure speckle patterns may be measured with an anamorphic optical processor. The anamorphic optical processor measures one component of the velocity or displacement throughout a linear region of the double-exposure speckle pattern. The signal in the output plane of such a processor is a fringe pattern. An analysis to predict fringe modulation based on Fourier optics and the statistics of speckle patterns is developed. The analysis specifies the effects of both the speckle-recording optics and the anamorphic optical processor on the fringe modulation. The observed loss of modulation when the velocity or displacement component perpendicular to the measured component is increased is also described. Measurements of fringe modulations that are produced by anamorphic optical processors with and without increased tolerance to the perpendicular velocity component are compared to results of the analysis. Fringe modulation versus relative exposure in the double-exposure speckle pattern are also measured and compared to the results of this analysis. An anamorphic processor that reduces the time for digital processing of the fringe patterns by a factor of N (typically 128, 256, or 512) relative to the two-dimensional Fourier transform optical processor (with identical spatial resolution) is demonstrated.

  View details for Web of Science ID A1992HM11000037

  View details for PubMedID 20720801

• THE EVOLUTION AND NATURE OF LARGE-SCALE STRUCTURES IN THE TURBULENT JET PHYSICS OF FLUIDS A-FLUID DYNAMICS Yoda, M., Hesselink, L., Mungal, M. G. 1992; 4 (4): 803-811

  View details for Web of Science ID A1992HK56500018

• Diffraction Efficiencies Recorded on Photographic Film Experimental Mechanics Collicott, S., Hesselink, L. 1992: 34-37
• VISUALIZATION OF 2ND-ORDER TENSOR-FIELDS AND MATRIX DATA 3RD ANNUAL CONF ON VISUALIZATION - VISUALIZATION 92 DELMARCELLE, T., Hesselink, L. MINERALS, METALS & MATERIALS SOC. 1992: 316–323

  View details for Web of Science ID A1992BY54L00042

• Octree Pruning for Variable-Resolution IIosurfaces Ning, P., Hesselink, L. 1992
• Visualization Second Order Tensor Fields & Matrix Data Delmarcelle, T., Hesselink, L. 1992
• Glucose sensor based on the LUQUEN principle. Hesselink, L. 1992
• Electric-Field Controlled Diffraction in Photorefractive Strontium Barium Niobate Optics Letters Wilde, J., P., Hesselink, L. 1992; 17 (12)
• Asymmetric turbulent vortical flows over slender bodies AIAA Journal Hesselink, L., Degani, D., Levy, Y. 1992; 30 (9): 2267-2273
• DIAMETER STABILIZATION OF CZOCHRALSKI-GROWN SR0.61BA0.39NB2O6 (SBN) CRYSTALS USING REAL-TIME COMPUTER CONTROL JOURNAL OF CRYSTAL GROWTH Wilde, J. P., Hesselink, L., Feigelson, R. S. 1991; 113 (3-4): 337-359

  View details for Web of Science ID A1991GM35600001

• VISUALIZING VECTOR FIELD TOPOLOGY IN FLUID-FLOWS IEEE COMPUTER GRAPHICS AND APPLICATIONS Helman, J. L., Hesselink, L. 1991; 11 (3): 36-46

  View details for Web of Science ID A1991FL27000011

• Quantitative Image Processing in Fluid Mechanics. Hesselink, L., Helman, J., L., Ning, P. 1991
• Optical Signal Processing Hesselink, L. 1991
• Quantitative Image Processing n Fluid Mechanics Hesselink, L., Helman, J., Ning, P. 1991
• Priority Communication Growth of Sr.61Ba.39Nb2O6 Fibers: New Results Regarding Orientation. J. of Crystal Growth Wilde, J., P., Jundt, D., H., Galambos, L., Hesselink, L. 1991; 114: 500-506
• Analysis and Representation of Complex Structures in Separated Flows. Helman, J., Hesselink, L. 1991
• Visualization Methods for Fluid Flow Datasets. Hesselink, L., Helman, J., L., Ning, P. 1991
• Visualizing Vector Field Topology in Fluid Flows. IEEE Computer Graphics and Applications Helman, J., L., Hesselink, L. 1991; 11 (3): 36-46
• Recent Advances in Holographic Data Storage in SBN. Hesselink, L., Wilde, J. 1991
• Numerical prediction of subsonic, turbulent flows over bodies at large incidence AIAA Journal Degani, D., Schiff, L., B., Levy, Y. 1991; 29 (12): 2054-2061
• Electro-Optic Effects and Domain Reversal in Sr0.61Ba0.39Nb2O6. Wilde, J., P., Hesselink, L. 1991
• DEGENERATE CONICAL EMISSIONS IN ATOMIC-SODIUM VAPOR JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Pender, J., Hesselink, L. 1990; 7 (7): 1361-1373

  View details for Web of Science ID A1990DM51600027

• APPLICATION OF HOLOGRAPHY TO THE MEASUREMENT OF VELOCITY-GRADIENTS IN FLUID-FLOWS SENSITIZED WITH PHOTOCHROMIC DYES PHYSICS OF FLUIDS A-FLUID DYNAMICS GARCIA, J. C., Hesselink, L. 1990; 2 (5): 688-699

  View details for Web of Science ID A1990DB89400007

• TEMPERATURE, INTENSITY, AND FIELD-DEPENDENCE OF THE ABSORPTION-COEFFICIENT OF BI12SIO20 OPTICS LETTERS Uhrich, C., Hesselink, L. 1990; 15 (9): 455-457

  Abstract

  Department of Applied Physics, Stanford University, Stanford, California 94305We report the observation of incident intensity and applied-field-induced increases in the absorption coefficient of Bi(12)SiO(20) at 514.5 nm. Absorption changes as large as 50% have been observed, but 10% is more typical. The main effect is thermal shifting of the absorption edge caused by ohmic heating from the photocurrent: Deltaalpha(T) = 0.0083 cm(-1) K(-1). In addition, there is a small absorption change proportional to the intensity alone that is approximately given by Deltaalpha(I) = 0.03 ln(I). We also report a linear decrease in the photoconductivity with temperature for T in the range 295-330 K.

  View details for Web of Science ID A1990DA81000001

  View details for PubMedID 19767973

• MEASUREMENT OF ELECTROOPTIC AND ELECTROGYRATORY EFFECTS IN BI12TIO20 JOURNAL OF APPLIED PHYSICS Wilde, J. P., Hesselink, L., McCahon, S. W., Klein, M. B., Rytz, D., Wechsler, B. A. 1990; 67 (5): 2245-2252

  View details for Web of Science ID A1990CR96900008

• A 3-DIMENSIONAL VISUALIZATION TECHNIQUE APPLIED TO FLOW AROUND A DELTA WING EXPERIMENTS IN FLUIDS Yoda, M., Hesselink, L. 1990; 10 (2-3): 102-108

  View details for Web of Science ID A1990EN35300006

• Measurement of electro-optic and electrogyratory effects in Bi12TiO20. Journal of Appl. Wilde, J., P., Hesselink, L. 1990; 67 (5): 2245—2252
• Photorefractive integrated-optical switch arrays in LiNb03. Opt. Lett. Aronson, L., B., Hesselink, L. 1990; 15 (1): 30—32
• Graphical visualization of vortical flows by means of helicity AIAA Journal Levy, Y., Degani, D., Seginer, A. 1990; 28: 1347-1352
• Photorefractive approaches to optical interconnects. Hesselink, L. 1990
• Nonlinear photorefractive effects and their application in dynamic optical interconnects and image processing Hesselink, L. Plenum Publishing Corp.. 1990
• A three dimensional visualization technique applied to flow around a delta wing. Experiments in Fluids Yoda, M., Hesselink, L. 1990; 10: 102-108
• Temperature, intensity and fluid of dependence of the absorption coefficient of BSO. Opt. Lett. Uhrich, C., Hesselink, L. 1990; 15 (9): 455-457
• Optical interconnects. Nonlinear Photonics Kostuk, R., Goodman, J., W., Hesselink, L. Springer Verlag, Vol. 30, chapter. 3, 29 pages, published. 1990: 29
• Auto-correlation measurements in three-dimensional fluid flow datasets. Experiments in Fluids Brand, A., J., Hesselink, L. 1990; 10: 55-59
• Photorefractive waveguide grating switches for optical interconnects. Aronson, L., Hesselink, L. 1990
• PHOTOREFRACTIVE INTEGRATED-OPTICAL SWITCH ARRAYS IN LINBO3 OPTICS LETTERS Aronson, L. B., Hesselink, L. 1990; 15 (1): 30-32

  Abstract

  A new optical switch design is reported that consists of two sets of parallel channel waveguides intersecting at right angles. Arrays based on Ti:LiNbO(3) technology, with waveguide intersections iron doped to provide photorefractive sensitivity, have been fabricated. Interfering guided beams are used to write index gratings at the waveguide intersections, which in turn diffract a portion of an incident signal beam into the crossing waveguide. Arrays ranging from 15 x 15 up to 50 x 50 waveguides are constructed in an active area of 5 mm x 5 mm. Diffraction efficiency and writing-time measurements are reported along with a proposal for a practical architecture.

  View details for Web of Science ID A1990CH36900011

  View details for PubMedID 19759701

• 2-WAVELENGTH PHOTOREFRACTIVE DYNAMIC OPTICAL INTERCONNECT OPTICS LETTERS MCRUER, R., Wilde, J., Hesselink, L., Goodman, J. 1989; 14 (21): 1174-1176

  Abstract

  A novel architecture for a reconfigurable optical routing switch using photorefractive crystals with nondestructive readout is presented. This design reduces the order of complexity from n(2) to n for a general two-wavelength n x n holographic interconnection network. The packing capacity of the network is discussed and is calculated to be of the order of 1000 x 1000 for an ideal volume holographic recording material. In practice, we show that the actual value is constrained by the number of gratings that can be multiplexed in a single photorefractive crystal. A 2 x 3 switch is demonstrated by using a Bi(12)GeO(20) crystal with 514-nm writing beams and 633-nm signal (readout) beams.

  View details for Web of Science ID A1989AX17300004

  View details for PubMedID 19759625

• REPRESENTATION AND DISPLAY OF VECTOR FIELD TOPOLOGY IN FLUID-FLOW DATA SETS COMPUTER Helman, J., Hesselink, L. 1989; 22 (8): 27-36

  View details for Web of Science ID A1989AJ17200004

• CONICAL EMISSIONS AND PHASE CONJUGATION IN ATOMIC SODIUM VAPOR IEEE JOURNAL OF QUANTUM ELECTRONICS Pender, J., Hesselink, L. 1989; 25 (3): 395-402

  View details for Web of Science ID A1989T992800020

• Progress in materials and configurations for photorefractive optical storage. Hesselink, L. 1989
• Holographic measurement of velocity gradients in fluid flows sensitized with photochromic dyes. Agüí, J., Hesselink, L. 1989
• Three-dimensional visualization of flow around a delta wing with leading edge blowing. Yoda, M., Hesselink, L. 1989
• Implementation of dynamic Hopfield-like networks using photorefractive crystals. Wilde, J., Hesselink, L. 1989
• Three-dimensional measurement, display and interpretation of fluid flow datasets. Yoda, M., Hesselink, L. 1989
• Analysis and visualization of flow topology in numerical data sets. Helman, J., Hesselink, L. 1989
• Distributed feedback oscillator using phase conjugation. Pender, J., Hesselink, L. 1989
• Three dimensional display of scientific data. Hesselink, L., Agüí, J. 1989
• Three-dimensional optical tomographic measurements of mixing fluids. Snyder, R., Hesselink, L. 1989
• Dynamic optical interconnects. Optics News Hesselink, L. 1989; 15 (12): 44—45
• Goodman, J.W. Two-wavelength photorefractive dynamic optical interconnect. Opt. Lett. McRuer, R., Wilde, J., Hesselink, L. 1989; 14 (21): 1174—1176
• Optical Image Processing. Handbook of Flow Visualization Hesselink, L. Hemisphere Publishing. 1989: 261—277
• Digital image processing in flow visualization. in Annual Review of Fluid Mechanics. (Palo Alto, CA, USA: Annual Reviews) Hesselink, L. 1989; 20
• Automated analysis of fluid flow topology. Helman, J., Hesselink, L. 1989
• Analysis of Fluid Flow Topology Helman, J., Hesselink, L. 1989
• Optical Tomography. Handbook of Flow Visualization Hesselink, L. Hemisphere Publishing. 1989: 307—327
• Analysis and visualization of flow topology in separated flows. Helman, J., Hesselink, L. 1989
• Real-time enhancement of submicron defects using photorefractives. Optics News Hesselink, L. 1989; 15 (12): 36—37
• Vorticity measurements in photochromic fluids. Hesselink, L. 1989
• Recent developments in photorefractives for optical processing. Hesselink, L. 1989
• OPTICAL-SURFACE INSPECTION USING REAL-TIME FOURIER-TRANSFORM HOLOGRAPHY IN PHOTOREFRACTIVES APPLIED OPTICS Uhrich, C., Hesselink, L. 1988; 27 (21): 4497-4503

  Abstract

  We present real-time optical preprocessor intended to enhance small defects in a smooth surface. The heart of the system is a photorefractive Bi(12)SiO(20) phase-conjugate mirror which reflects only the low intensity features of the object's optical Fourier transform. By adjusting the beam ratios so that only the low intensity, high spatial frequency image components are phase conjugated and inverse transformed, an image consisting of just the defects is produced. To our knowledge, this is the first use of this technique on opaque and nonperiodic objects. We present experimental data showing enhancement of defects as small as 0.14 microm.

  View details for Web of Science ID A1988Q889000033

  View details for PubMedID 20539599

• PHOTOREFRACTIVE HOLOGRAPHIC RECORDING IN STRONTIUM BARIUM NIOBATE FIBERS OPTICS LETTERS Hesselink, L., Redfield, S. 1988; 13 (10): 877-879

  Abstract

  We describe what are to our knowledge the first photorefractive holographic recordings in a fiber. A plane-wave reference and an image-carrying object beam are incident upon the fiber in a reflection geometry. We report results on the angular sensitivity of the recordings, the image quality, and readout efficiency as a function of the reference-wave input angle when the object wave propagates along the bore of the fiber. These experiments are carried out for two relatively short, 4- and 8-mm, multimode 1-mm-diameter fibers. The results suggest that an array of fibers might favorably replace bulk materials for certain computer and signal-processing applications.

  View details for Web of Science ID A1988Q191500025

  View details for PubMedID 19746065

• ENHANCED NONDESTRUCTIVE HOLOGRAPHIC READOUT IN STRONTIUM BARIUM NIOBATE OPTICS LETTERS Redfield, S., Hesselink, L. 1988; 13 (10): 880-883

  Abstract

  We describe a novel procedure for obtaining enhanced nondestructive holographic readout in SBN, where the key new ingredient is utilization of degrees of freedom in polarization of the reconstruction beam. The effect also involves spatial frequency and the applied voltage during both the recording and the reconstruction. The reconstructed beam first drops in intensity but subsequently grows in strength above the starting value, approaching 100% efficiency in some cases. More than 6 h of continuous readout has been achieved, with efficiency remaining strong enough to give more than 10(9) 10-microsec readouts with signal-to-noise ratios exceeding 20 dB.

  View details for Web of Science ID A1988Q191500026

  View details for PubMedID 19746066

• HOLOGRAMS IN MOTION .1. EFFECT OF FLUID MOTION ON VOLUME HOLOGRAMS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION AGUI, J. C., Hesselink, L. 1988; 5 (8): 1287-1296

  View details for Web of Science ID A1988P556900016

• HOLOGRAMS IN MOTION .2. DIFFRACTING CAPABILITIES OF STRAINED HOLOGRAMS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION AGUI, J. C., Hesselink, L. 1988; 5 (8): 1297-1308

  View details for Web of Science ID A1988P556900017

• SELECTIVE ENHANCEMENT OF SPATIAL HARMONICS OF A PHOTOREFRACTIVE GRATING JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS VACHSS, F., Hesselink, L. 1988; 5 (8): 1814-1821

  View details for Web of Science ID A1988P698000038

• SYNTHESIS OF A HOLOGRAPHIC IMAGE VELOCITY FILTER USING THE NONLINEAR PHOTOREFRACTIVE EFFECT APPLIED OPTICS VACHSS, F., Hesselink, L. 1988; 27 (14): 2887-2894

  Abstract

  We demonstrate a technique by which components of an image moving with a given speed and direction may be selectively enhanced. By using the strong grating velocity sensitivity of the nonlinear photorefractive response, we show that a BSO crystal used in a schlieren imaging system may be used as a real-time velocity filter. The velocity selectivity, tunability and resolution constraints of this system are discussed in detail.

  View details for Web of Science ID A1988P363100017

  View details for PubMedID 20531857

• FLOW VISUALIZATION AND NUMERICAL-ANALYSIS OF A COFLOWING JET - A 3-DIMENSIONAL APPROACH JOURNAL OF FLUID MECHANICS AGUI, J. C., Hesselink, L. 1988; 191: 19-45

  View details for Web of Science ID A1988P021500002

• NONLINEAR PHOTOREFRACTIVE RESPONSE AT HIGH MODULATION DEPTHS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION VACHSS, F., Hesselink, L. 1988; 5 (5): 690-701

  View details for Web of Science ID A1988N333000007

• REAL-TIME PHOTOREFRACTIVE RECORDING AND OPTICAL-PROCESSING FOR SPECKLE VELOCIMETRY OPTICS LETTERS Collicott, S. H., Hesselink, L. 1988; 13 (5): 348-350

  Abstract

  A photorefractive crystal (Bi(12)GeO(20)) is used to record double-exposure speckle patterns produced by Q-switched laser pulses in real-time speckle metrology and velocimetry applications. The speckle pattern displacements are immediately measured with an optical processor of the type used for measuring speckle displacements recorded on photographic film. Operation of the optical processor is described and compared with the case of film recording. Observed spatial and temporal recording properties of the crystal in this imaging configuration are discussed and compared with published results for single-frequency grating recording in photorefractives. The system is applied to measuring velocities of a moving solid object.

  View details for Web of Science ID A1988N323200006

  View details for PubMedID 19745894

• MEASUREMENT OF MIXING FLUID-FLOWS WITH OPTICAL TOMOGRAPHY OPTICS LETTERS Snyder, R., Hesselink, L. 1988; 13 (2): 87-89

  View details for Web of Science ID A1988L830000004

  View details for PubMedID 19741989

• COMPUTER DISPLAY OF RECONSTRUCTED 3-D SCALAR DATA APPLIED OPTICS Wu, K., Hesselink, L. 1988; 27 (2): 395-404

  Abstract

  This paper addresses the problem of visualizing 3-D scalar data, initially represented as an ordered set of digital images stacked parallel to each other. An observer's ability to perceive the geometry of the structures in these data fields depends on the methods of reconstructing and displaying 3-D representations. We describe three computer-based visualization methods that share the common goal of displaying the interior structures of 3-D data, and we present the results of applying these methods to a set of fluid-flow data. Interactive peeling of smooth opaque contour surfaces is the best of the three methods: it gives excellent perception cues.

  View details for Web of Science ID A1988L870800035

  View details for PubMedID 20523604

• DIGITAL IMAGE-PROCESSING IN FLOW VISUALIZATION ANNUAL REVIEW OF FLUID MECHANICS Hesselink, L. 1988; 20: 421-?

  View details for Web of Science ID A1988N090500017

• Advance diagnostics for flow understanding and flow visualization. Hesselink, L. 1988
• Digital image processing in flow visualization. Ann. Review of Fluid Mechanics Hesselink, L. Annual Reviews. 1988: 421—485
• Holograms in motion, I: The effect of fluid motion on volume holograms. JOSA A Agüí, J., Hesselink, L. 1988; 5 (8): 1287—1296
• Data storage in photorefractives revisited. Redfield, S., Hesselink, L. 1988
• Cubic spline contour surfaces of three-dimensional scalar data. IEEE Transactions on Visualization Wu, K., Hesselink, L. 1988
• Optical associative memories based upon photorefractive crossbar switching. Optics Letters Wilde, J., Hesselink, L. 1988
• Optical surface inspection using real time Fourier transform holography in photorefractives. Applied Optics Uhrich, C., Hesselink, L. 1988; 27 (21): 4497—4503
• Real time photorefractive recording and optical processing for speckle velocimetry. Optics Letters Collicott, S., Hesselink, L. 1988; 13 (5): 348—350
• Visualization and interpretation of three-dimensional scientific data sets. Hesselink, L., Helman, J., Wu, K. 1988
• Measurement of mixing fluid flows with optical tomography Optics Letters Snyder, R., Hesselink, L. 1988; 13 (2): 87-9
• Holograms in motion, II: The diffraction capabilities of strained holograms. JOSA A Agüí, J., Hesselink, L. 1988; 5 (8): 1297—1308
• Propagation of weak shocks through a random medium. J. Fluid Mech. Hesselink, L., Sturtevant, B. 1988; 196: 513—553
• Computer display of reconstructed three-dimensional scalar data. Applied Optics Wu, K., Hesselink, L. 1988; 27 (2): 395—404
• Direct holographical measurements of velocity gradients in boundary layers. Agüí, J., Hesselink, L. 1988
• Two wavelength photorefractive dynamic optical interconnect. McRuer, R., Hesselink, L. 1988
• Enhanced nondestructive holographic readout in SBN. Optics Letters Redfield, S., Hesselink, L. 1988; 13 (10): 880—882
• Instantaneous three-dimensional optical tomography for flow visualization. Hesselink, L., Snyder, R. 1988
• Flow visualization and numerical analysis of a co-flowing jet: a three-dimensional approach. Journal of Fluid Mech. Agüí, J., Hesselink, L. 1988; 191: 19—45
• DESIGN CONSIDERATIONS FOR HOLOGRAPHIC OPTICAL INTERCONNECTS APPLIED OPTICS Kostuk, R. K., Goodman, J. W., Hesselink, L. 1987; 26 (18): 3947-3953

  Abstract

  The geometrical design characteristics of multiple-image holograms are evaluated. A figure of merit expressing these characteristics as a function of the hologram diameter and the distance between the hologram and the image plane is developed. This value is then used to compare two designs which are capable of forming several hundred interconnections. The results indicate that these connections can be formed between points on the substrate separated by 2-3 cm provided that the holograms are separated from the substrate plane by 0.5-1 cm. Each hologram design is experimentally demonstrated in bleached photographic emulsions.

  View details for Web of Science ID A1987K206900036

  View details for PubMedID 20490168

• SODIUM PHASE-CONJUGATE OSCILLATOR IN A COMBUSTING ENVIRONMENT OPTICS LETTERS Pender, J., Hesselink, L. 1987; 12 (9): 693-695

  Abstract

  We report on the use of a sodium-seeded flame as an amplifying phase conjugator. The environment is unique in that a number density of 10(16) cm(-3) is maintained despite a lateral dimension of 1 mm. We combine two of these optically pumped flames to form a phase-conjugate resonator. Finally, we observe oscillation that is due to the action of a single flame and two pump beams.

  View details for Web of Science ID A1987J862000018

  View details for PubMedID 19741842

• MEASUREMENT OF THE ELECTROGYRATORY AND ELECTROOPTIC EFFECTS IN BSO ANG BGO OPTICS COMMUNICATIONS VACHSS, F., Hesselink, L. 1987; 62 (3): 159-165

  View details for Web of Science ID A1987H660600005

• HOLOGRAPHIC BEAM COUPLING IN ANISOTROPIC PHOTOREFRACTIVE MEDIA JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION VACHSS, F., Hesselink, L. 1987; 4 (2): 325-339

  View details for Web of Science ID A1987F899200003

• The control of vortical flows over a delta wing. Hesselink, L., Roberts, L., Kroo, I., Wood, N., J. 1987
• Volume holography in flowing liquids. Agüí, J., Hesselink, L. 1987
• Dynamic holographic interconnections using photorefractive crystals. Wilde, J., Hesselink, L. 1987
• Evaluation of flow field topology from numerical data. Hesselink, L., Helman, J. 1987
• Measurement of the electrogyratory and electro-optic effect in BSO and BGO. Opt. Comm. Vachss, F., Hesselink, L. 1987; 62 (3): 159—165
• Dynamic holographic interconnections using photorefractive crystals. Wilde, J., McRuer, R., Hesselink, L., Goodman, J., W. 1987
• High speed optical tomographic data acquisition systems for combustion research. Hesselink, L. 1987
• Holographical strain measurement in fluids. Agüí, J., Hesselink, L. 1987
• Real time speckle velocimetry with recording in photorefractive crystals. Collicott, S., Hesselink, L. 1987
• Photorefractive recording of speckle for real-time velocimetry and metrology. Collicott, S., Hesselink, L. 1987
• VOLUME REFLECTION HOLOGRAMS WITH MULTIPLE GRATINGS - AN EXPERIMENTAL AND THEORETICAL EVALUATION APPLIED OPTICS Kostuk, R. K., Goodman, J. W., Hesselink, L. 1986; 25 (23): 4362-4369

  View details for Web of Science ID A1986F055700026

  View details for PubMedID 18235792

• ANAMORPHIC OPTICAL-PROCESSING OF MULTIPLE-EXPOSURE SPECKLE PHOTOGRAPHS OPTICS LETTERS Collicott, S. H., Hesselink, L. 1986; 11 (7): 410-412

  Abstract

  Previous methods for analyzing double-exposed speckle photographs provide point-by-point velocity information by using two-dimensional Fourier analysis, or constant velocity contours by using spatial filtering techniques. A new method using an anamorphic optical system to measure one component of the velocity throughout a section of the flow is analyzed and demonstrated. A laser sheet, thin in the x direction and extended in the y direction, is used to probe a line of the photograph of which the anamorphic optical system forms a one-dimensional Fourier transform in the x direction and images the speckle pattern in the y direction for measuring the x-velocity component. This results in curved fringes, which have a local spacing inversely proportional to the x-velocity component at that point. Thus it is possible to measure a velocity component along a selected line in the flow. This differs from spatial filtering techniques that produce contours showing the points where a selected velocity occurs.

  View details for Web of Science ID A1986C992500002

  View details for PubMedID 19730647

• HIGHER-ORDER ANALYSIS OF THE PHOTOREFRACTIVE EFFECT FOR LARGE MODULATION DEPTHS JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Ochoa, E., VACHSS, F., Hesselink, L. 1986; 3 (2): 181-188

  View details for Web of Science ID A1986AZK0600001

• Real-time defect enhancement using inversion properties of photorefractive BSO. Proc. SPIE, Vol. 613-33, p. 194 (7 pages), Los Angeles, CA Goodman, J. W. 1986
• Optical interconnects with reflection holographic optical elements. Invited paper, Topical Meeting on Holography, Optical Society of America (OSA), 4 pages, Honolulu, HI 1986
• A higher order analysis of the photorefractive effect for large modulation depths. JOSA A Ochoa, E., Vachss, F., Hesselink, L. 1986; 3 (2): 181—187
• Three-dimensional reconstruction of fluid flow visualization images. Proc. 4th Intl. Meeting on Flow Visualization, 5 pages, Paris, France 1986
• Anamorphic optical processing of multiple exposure speckle photographs. Optics Lett Collicott, S., Hesselink, L. 1986; 11 (7): 410—412
• Electrogyratory and electro-optic coupling in BSO and BGO. Proc. SPIE, Vol. 613, p. 178 (9 pages), Los Angeles, CA 1986
• Volume reflection holograms with multiple gratings: an experimental and theoretical evaluation. Appl. Opt. Kostuk, R., K., Goodman, J., W., Hesselink, L. 1986; 25 (23): 4362—4369
• MULTIPLE MULTIPLE-EXPOSURE HOLOGRAM APPLIED OPTICS Johnson, K. M., Armstrong, M., Hesselink, L., Goodman, J. W. 1985; 24 (24): 4467-4472

  View details for Web of Science ID A1985AXB6000037

  View details for PubMedID 18224230

• OPTICAL IMAGING APPLIED TO MICROELECTRONIC CHIP-TO-CHIP INTERCONNECTIONS APPLIED OPTICS Kostuk, R. K., Goodman, J. W., Hesselink, L. 1985; 24 (17): 2851-2858

  Abstract

  An imaging system is proposed as an alternative to metallized connections between integrated circuits. Power requirements for metallized interconnects and electrooptic links are compared. A holographic optical element is considered as the imaging device. Several experimental systems have been constructed which have visible LEDs as the transmitters and PIN photodiodes as the receivers. Signals are evaluated at different source-detector separations. Multiple exposure holograms are used as a means of optical fan out allowing one source to simultaneously address several receiver locations. Limitations of this technique are also discussed.

  View details for Web of Science ID A1985AQA8400028

  View details for PubMedID 18223967

• The multiple-multiple exposure hologram. Appl. Opt. Johnson, K., M., Armstrong, M., Hesselink, L., Goodman, J., W. 1985; 24 (24): 4467—4472
• Real-time intensity inversion using two-wave and four-wave mixing in photorefractive BGO. Appl. Opt. Ochoa, E., Hesselink, L., Goodman, J., W. 1985; 24 (12): 1826—1832
• Real-time enhancement of defects in a periodic mask using photorefractive BSO. Opt. Lett. Ochoa, E., Goodman, J., W., Hesselink, L. 1985; 10 (9): 430—432
• High speed optical tomography for flow visualization. Appl. Opt. Snyder, R., Hesselink, L. 1985; 24 (23): 4046 (15 pages)
• REAL-TIME INTENSITY INVERSION USING 2-WAVE AND 4-WAVE MIXING IN PHOTOREFRACTIVE BI12GEO20 APPLIED OPTICS Ochoa, E., Hesselink, L., Goodman, J. W. 1985; 24 (12): 1826-1832

  View details for Web of Science ID A1985AKE8300028

  View details for PubMedID 18223799

• HIGH-SPEED OPTICAL TOMOGRAPHY FOR FLOW VISUALIZATION APPLIED OPTICS Snyder, R., Hesselink, L. 1985; 24 (23): 4046-4051

  View details for Web of Science ID A1985AVY5200018

  View details for PubMedID 18224160

• NON-HOLOGRAPHIC 3-DIMENSIONAL DISPLAY DEVICES PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS Hesselink, L. 1985; 532: 14-28

  View details for Web of Science ID A1985APP0500003

• PHASE CONJUGATION IN A FLAME OPTICS LETTERS Pender, J., Hesselink, L. 1985; 10 (6): 264-266

  Abstract

  The first observation to our knowledge of degenerate four-wave mixing in a sodium-seeded flame is reported. In addition, the theoretical dependence of the phase-conjugate output on the sodium concentration is verified experimentally, demonstrating the potential of this procedure for use as a diagnostic tool to measure species concentration in combusting or noncombusting media.

  View details for Web of Science ID A1985AHT9000007

  View details for PubMedID 19724415

• REAL-TIME ENHANCEMENT OF DEFECTS IN A PERIODIC MASK USING PHOTOREFRACTIVE BI12SIO20 OPTICS LETTERS Ochoa, E., Goodman, J. W., Hesselink, L. 1985; 10 (9): 430-432

  Abstract

  The first known experimental results of real-time optical defect enhancement of a periodic mask are reported. A low-intensity reference wave interferes with the Fourier transform of an object beam to form a hologram in a photorefractive crystal. The nonlinear properties of the crystal perform a filtering operation, and phase-conjugate readout results in a defect-enhanced image. Defects of size 10 microm x 100 microm have been easily detected with high signalto- noise ratio, and a discussion of performance limitations is presented.

  View details for Web of Science ID A1985APM7300002

  View details for PubMedID 19724471

• HOLOGRAPHIC RECIPROCITY LAW FAILURE APPLIED OPTICS Johnson, K. M., Hesselink, L., Goodman, J. W. 1984; 23 (2): 218-227

  View details for Web of Science ID A1984RZ78400015

  View details for PubMedID 18204543

• Optical tomography for flow visualization of the density field around a revolving helicopter rotorblade. Appl. Opt. Snyder, R., Hesselink, L. 1984; 23 (20): 3650—3656
• OPTICAL TOMOGRAPHY FOR FLOW VISUALIZATION OF THE DENSITY FIELD AROUND A REVOLVING HELICOPTER ROTOR BLADE APPLIED OPTICS Snyder, R., Hesselink, L. 1984; 23 (20): 3650-3656

  View details for Web of Science ID A1984TM61500036

  View details for PubMedID 18213207

• DIGITAL RECONSTRUCTION METHODS FOR 3-DIMENSIONAL IMAGE VISUALIZATION PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS JAFFEY, S. M., Dutta, K., Hesselink, L. 1984; 507: 155-163

  View details for Web of Science ID A1984TU65400021

• HOLOGRAPHIC DISPLAY DEVICES PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS Hesselink, L., Johnson, K. M., PERLMUTTER, R. J. 1983; 402: 80-87

  View details for Web of Science ID A1983SA82100013

• Three-dimensional tomographic reconstruction of the flow around a revolving helicopter rotorblade; a numerical simulation. Proc. Third Intl.. Symp. Flow Vis., pp. 213—220, Ann Arbor, MI: Hemisphere Publishing Corp. 1983
• Quantitative three-dimensional flow visualization. Proc. Third Intl.. Symp. Flow Vis., pp. 295—300, Ann Arbor, MI: Hemisphere Publishing Corp. 1983
• Digital image processing of flow visualization photographs. Appl. Opt. Hesselink, L., White, B., S. 1983; 22 (10): 1454
• DIGITAL IMAGE-PROCESSING OF FLOW VISUALIZATION PHOTOGRAPHS APPLIED OPTICS Hesselink, L., White, B. S. 1983; 22 (10): 1454-1460

  View details for Web of Science ID A1983QQ95300012

  View details for PubMedID 18195986

• MULTIPLE EXPOSURE HOLOGRAPHIC DISPLAY OF CT MEDICAL DATA PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS Johnson, K. M., Hesselink, L., Goodman, J. W. 1982; 367: 149-154

  View details for Web of Science ID A1982QP05000020

• INVESTIGATION OF A MODEL FOR LATENT-IMAGE FORMATION IN MULTIPLE-EXPOSURE HOLOGRAPHY Johnson, K. M., Hesselink, L., Goodman, J. W. AMER INST PHYSICS. 1982: 1824–25

  View details for Web of Science ID A1982PW26900529

• Multiple exposure holographic display of C.T. medical data. Proc. Society of Photo-Optical Instrumentation Engineers (SPIE), Vol. 367, pp. 149—154, San Diego, CA Johnson, K. M., Goodman, J. W. 1982
• Propagation of shock waves through non-uniform and random media. Proceedings 13th International Symposium on Shock Tubes and Waves, 5 pages, Niagara Falls, NY: State University of New York Press White, B. S. 1981
• Propagation of shock waves in random media. Proceedings 12th International Symposium on Shock Tubes and Waves, Jerusalem, Israel: The Magnes Press, pp. 359—365 Sturtevant, B., Hesselink, L., Haas, J. F. 1979
• Laser propagation through a turbulent gaseous medium. Meteorological Optics Meeting, 8 pages, Keystone, Colorado Hesselink, L., George, N. 1978
• An experimental investigation of the propagation of weak shock waves in a random medium. 11th International Symposium on Shock Tubes and Waves, Seattle, WA, pp. 82—90 Hesselink, L. 1977
• Display technology, 3-D. Encyclopedia of Physical Science and Technology Hesselink, L. Academic Press. : 20