SLAC National Accelerator Laboratory
Showing 651-700 of 1,913 Results
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Alex Halavanau
Lead Scientist, SLAC National Accelerator Laboratory
Current Role at StanfordBuilding future x-ray sources
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Sheikh Rubaiat Ul Haque
Postdoctoral Scholar, Photon Science, SLAC
BioRubaiat received his undergraduate degree in Applied Physics from the University of Tokyo in 2017. He then moved to the University of California San Diego where he finished his PhD in Physics under Professor Richard Averitt in 2023. During his PhD, he discovered light-induced terahertz parametric amplification and photonic time crystal state in excitonic insulator candidate Ta2NiSe5. He has also demonstrated efficient nonresonant nonlinear magnon generation in a Mott insulating Heisenberg antiferromagnet Sr2IrO4 as well as broadband optical control of plasmonic modes in semiconducting metamaterials.
Currently, Rubaiat is a postdoctoral scholar at Stanford University working on terahertz field-induced ultrafast dynamics in van der Waals magnets under the guidance of Professors Tony Heinz and Aaron Lindenberg. He has shown that intense terahertz pulses can modulate symmetry and drive transitions to a hidden ferrimagnetic state in van der Waals antiferrognet MnPS3. He has recently extended his research to THz spectroscopy of 2D materials. His broader interests also include cavity control and Floquet/Kapitza engineering of quantum materials. -
Ayana T Hardaway, Ph.D.
Contract and Grant Offcr, SLAC National Accelerator Laboratory
Current Role at StanfordContract and Grant Officer
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Corey L. Hardin
Research Technical Manager, SLAC National Accelerator Laboratory
Current Role at StanfordDepartment Head for Experimental Systems Engineering at SLAC National Accelerator Laboratory
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Daniel Harrington
Research Technical Manager, SLAC National Accelerator Laboratory
Current Role at StanfordBeam Line Systems Division Director at the Stanford Synchrotron Radiation Lightsource
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Britt Hedman
Professor of Photon Science
BioBritt Hedman’s research program is focused on the development and applications of x-ray absorption and emission spectroscopies using synchrotron radiation, with a scientific emphasis primarily on study of the electronic and structural aspects of metal ion active sites in bioinorganic and biological systems. A common theme is to investigate how structure at molecular and macromolecular levels relates to function.
A major long-term focus has been the active site of the enzyme nitrogenase, and the various nitrogenase metal clusters, including elucidating the electronic and geometric structure of those that are formed and changed along their biosynthetic pathways. Other systems of systematic studies include iron-sulfur cluster containing enzymes, blue and multi-copper proteins, heme-copper oxidases, and iron-containing oxidases. Methods developments include x-ray absorption spectroscopy (edge and extended fine structure - or EXAFS), including the application of multiple-scattering analysis in EXAFS studies of metal clusters relevant to bioinorganic systems, the development of methodology for polarized single crystal x-ray absorption spectroscopy, and methodology and instrumentation development for soft- through hard-energy XAS.
Britt Hedman received her B.S and B.A. in Chemistry, M.Sc. in Inorganic Chemistry, and Ph.D. in Chemistry from the University of Umeå, Sweden. She was Assistant Professor (equivalent) in Inorganic Chemistry at the University of Umeå before coming to Stanford, initially as Senior Academic Scientific Staff, followed by appointed as Professor (Research) in 2002, and Professor of Photon Science in 2007. -
Tony Heinz
Director, Edward L. Ginzton Laboratory, Professor of Applied Physics, of Photon Science, and, by courtesy, of Electrical Engineering
Current Research and Scholarly InterestsElectronic properties and dynamics of nanoscale materials, ultrafast lasers and spectroscopy.
