University of Colorado at Boulder, USA
Harnessing Extreme Quantum Light Science for understanding Quantum Materials
Most advanced applications of visible lasers require precise control over light – including the wavelength, polarization, waveform and coherence. However, until recently, there were no widely available coherent light sources at wavelengths shorter than the UV. Moreover, EUV and x-ray optics are expensive and challenging to manufacture, when available at all. The extreme quantum coherence of high harmonic (HHG) light sources is enabling exquisite control x-ray light using visible lasers - allowing full control over the waveform, polarization state, orbital and spin angular momenta, and divergence of HHG beams. Important applications include imaging and spectroscopy of quantum materials, as well as metrologies in support of next-generation nanotechnologies. A host of use cases in materials and nano science have now been demonstrated, including engineering energy flow in nanostructures, uncovering the microscopic mechanisms for manipulating the electronic or magnetic state of a material, and directly visualizing the dynamic band structure of materials on femtosecond time scales. Finally, the high spatial coherence of EUV sources makes it possible to implement diffraction-limited imaging at short wavelengths for the first time. This is paving the way for the development of commercial tools for EUV imaging that will provide easy access to these advanced techniques in the laboratory setting.
Most advanced applications of visible lasers require precise control over light – including the wavelength, polarization, waveform and coherence. However, until recently...
About the Speaker
Margaret Murnane is Director of the US National Science Foundation STROBE Science and Technology Center on functional nanoimaging, a Fellow at JILA and a member of the Departments of Physics and Electrical and Computer Engineering at the University of Colorado Boulder. She received her B.S and M.S. degrees from University College Cork, Ireland, and her Ph.D. degree in physics from the University of California at Berkeley in 1989. She runs a joint research group with her husband, Prof. Henry Kapteyn. Margaret's research interests have been in ultrafast laser and x-ray science. She is a Fellow of the American Physical Society, the Optical Society of America and the AAAS. Her honors include the 2017 recipient of the Ives Medal/ Quinn Prize of the Optical Society of America, a John D. and Catherine T. MacArthur Fellowship, and election to the National Academy of Sciences, the American Phiosophical Society, and the Royal Irish Academy. She has done extensive service, including serving as Chair of the President’s Committee for the US National Medal of Science.
Margaret Murnane is Director of the US National Science Foundation STROBE Science and Technology Center on functional nanoimaging, a Fellow at JILA and a member of the Departments of Physics...