February 9, 2022, Online 6:30 pm PDT
OSSC Online Meeting
“Quantum Design of Coherent X-rays for Multidimensional Imaging”
Dr. Tenio Popmintchev, Physics Department and Center of Advanced Nanoscience, UCSD
Agenda and Registration
Wednesday, February 9th, 2022
Prior Registration Required
Login Credentials emailed on Feb 9.
Attendee Logon: 6:30pm
7:00pm –7:15pm OSSC President Opens Meeting & Speaker Introduction
7:15pm—8:15 Professor Popmintchev Presentation
8:15pm--8:45pm Q & A
9:00pm Meeting Closes
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On-Line Registration Closes Feb 8, 2022
Abstract:Nonlinear optics revolutionized the ability to create directed, laser-like light particularly in the regions where lasers based on conventional population inversion are not practical. New breakthroughs in attosecond extreme nonlinear optics promise a similar revolution in the X-ray regime.
In this talk, I will discuss the fundamental quantum physics and the phase matching limits of high order harmonic generation in the context of designing coherent X-ray waveforms in the soft X-ray region which can be tailored in the moment of generation. Such a versatile light source is ideal for 4D dynamic studies of various bio- and nano-systems at the space-time limit with combined attosecond temporal and nanometer spatial resolution, as well as with access to an effective 5th dimension providing element and chemical specificity. I will also discuss the path forward for generating bright coherent X-ray beams from a laboratory-scale apparatus at photon energies of 10 keV and greater with unprecedented attosecond-to-zeptosecond pulse durations, and with tunable spectral, temporal shapes, and spin and orbital angular momentum. A fully spatially and temporally coherent version of the Roentgen X-ray tube with exquisite quantum control of the properties of the soft and hard X-ray light may be possible.
About our speaker: Tenio Popmintchev received his Ph.D. in Physics from JILA, University of Colorado at Boulder in 2010, in the field of experimental Atomic, Molecular and Optical Physics. He did his undergraduate studies in Sofia University, Bulgaria, in theoretical Physics - Laser Physics and Quantum Electronics. Tenio was a Postdoctoral Fellow, a Senior Research Associate, and a Research Professor at JILA - the same institute where he did his graduate work. Since 2016, he is an Assistant Professor at the Physics Department and the Center for Advanced Nanoscience at University of California San Diego. Tenio’s research interests have been focused on
extreme non-linear optics and attosecond X-ray science, and novel approaches for fully spatially and temporally coherent upconversion of ultrafast laser light from the UV, visible, and mid-infrared region of the electromagnetic spectrum into the X-ray regime. He has patented some of the most widely adopted techniques for coherent X-ray generation on a tabletop.
