Brian Kaufman

All Publications

• Long-lived electronic coherences in molecular wave packets probed with pulse-shape spectroscopy PHYSICAL REVIEW A Kaufman, B., Marquetand, P., Rozgonyi, T., Weinacht, T. 2024; 110 (3)

  View details for DOI 10.1103/PhysRevA.110.033118

  View details for Web of Science ID 001327395600001

• Direct observation of entangled electronic-nuclear wave packets PHYSICAL REVIEW RESEARCH Mogol, G., Kaufman, B., Weinacht, T., Cheng, C., Ben-Itzhak, I. 2024; 6 (2)

  View details for DOI 10.1103/PhysRevResearch.6.L022047

  View details for Web of Science ID 001239824300005

• High repetition-rate pulse shaping of a spectrally broadened Yb femtosecond laser OPTICS CONTINUUM Codere, J., Belmonte, M., Kaufman, B., Wahl, M., Jones, E., Cohen, M., Weinacht, T., Forbes, R. 2024; 3 (5): 785-794

  View details for DOI 10.1364/OPTCON.522036

  View details for Web of Science ID 001299663200006

• Long-Lived Electronic Coherences in Molecules PHYSICAL REVIEW LETTERS Kaufman, B., Marquetand, P., Rozgonyi, T., Weinacht, T. 2023; 131 (26): 263202

  Abstract

  We demonstrate long-lived electronic coherences in molecules using a combination of measurements with shaped octave spanning ultrafast laser pulses and calculations of the light matter interaction. Our pump-probe measurements prepare and interrogate entangled nuclear-electronic wave packets whose electronic phase remains well defined despite vibrational motion along many degrees of freedom. The experiments and calculations illustrate how coherences between excited states can survive, even when coherence with the ground state is lost, and may have important implications for many areas of attosecond science and photochemistry.

  View details for DOI 10.1103/PhysRevLett.131.263202

  View details for Web of Science ID 001153471200005

  View details for PubMedID 38215370

• Numerical calculations of multiphoton molecular absorption PHYSICAL REVIEW A Kaufman, B., Marquetand, P., Weinacht, T., Rozgonyi, T. 2022; 106 (1)

  View details for DOI 10.1103/PhysRevA.106.013111

  View details for Web of Science ID 000835592900007

• A simple approach for characterizing the spatially varying sensitivity of microchannel plate detectors REVIEW OF SCIENTIFIC INSTRUMENTS Aglagul, D., Kaufman, B., Cheng, C., Weinacht, T., Saule, T., Trallero-Herrero, C. A., Nomerotski, A. 2022; 93 (7): 075108

  Abstract

  We present a simple approach to characterize the spatial variation of the gain in microchannel plate (MCP) coupled to phosphor detectors using single electron or photon hits. The technique is easy to implement and general enough to be extended to other kinds of detectors. We demonstrate the efficacy of the approach on both laboratory and Monte Carlo generated datasets. Furthermore, we use the approach to measure the variation in gain over time as the MCP is exposed to an increasing number of electrons.

  View details for DOI 10.1063/5.0092346

  View details for Web of Science ID 000936216500008

  View details for PubMedID 35922295

• Acousto-optic modulator pulse-shaper compression of octave-spanning pulses from a stretched hollow-core fiber OSA CONTINUUM Catanese, A., Kaufman, B., Cheng, C., Jones, E., Cohen, M. G., Weinacht, T. 2021; 4 (12): 3176-3183

  View details for DOI 10.1364/OSAC.440476

  View details for Web of Science ID 000732743000007

• Competition between dynamic resonance and internal conversion in strong-field molecular ionization with chirped ultrafast laser pulses PHYSICAL REVIEW A Kaufman, B., Rozgonyi, T., Marquetand, P., Weinacht, T. 2021; 103 (2)

  View details for DOI 10.1103/PhysRevA.103.023108

  View details for Web of Science ID 000618066800009

• Adiabatic elimination in strong-field light-matter coupling PHYSICAL REVIEW A Kaufman, B., Rozgonyi, T., Marquetand, P., Weinacht, T. 2020; 102 (6)

  View details for DOI 10.1103/PhysRevA.102.063117

  View details for Web of Science ID 000601327400008

• Coherent Control of Internal Conversion in Strong-Field Molecular Ionization PHYSICAL REVIEW LETTERS Kaufman, B., Rozgonyi, T., Marquetand, P., Weinacht, T. 2020; 125 (5): 053202

  Abstract

  We demonstrate coherent control over internal conversion during strong-field molecular ionization with shaped, few-cycle laser pulses. The control is driven by interference in different neutral states, which are coupled via non-Born-Oppenheimer terms in the molecular Hamiltonian. Our measurements highlight the preservation of electronic coherence in nonadiabatic transitions between electronic states.

  View details for DOI 10.1103/PhysRevLett.125.053202

  View details for Web of Science ID 000553250400008

  View details for PubMedID 32794883

• Time-resolved measurement of internal conversion dynamics in strong-field molecular ionization PHYSICAL REVIEW A Tagliamonti, V., Kaufman, B., Zhao, A., Rozgonyi, T., Marquetand, P., Weinacht, T. 2017; 96 (2)

  View details for DOI 10.1103/PhysRevA.96.021401

  View details for Web of Science ID 000406749100001