Experimental Observation of Second Harmonic Generation at X-Ray Wavelengths

Seminar
Speaker
Dr. Sharon Shwartz, Bar Ilan University
Date
02/01/2013 - 15:00 - 14:00Add to Calendar 2013-01-02 14:00:00 2013-01-02 15:00:00 Experimental Observation of Second Harmonic Generation at X-Ray Wavelengths X-ray free-electron lasers operating in the angstrom regime have recently become available. These new systems, which deliver femtosecond-scale pulses with peak intensity exceeding 1018 W/cm2, open the path to new experiments in the field of nonlinear optics at x-ray wavelengths. Recently, we have observed phase-matched x-ray second harmonic generation of a pump beam at 1.7 Å. I will describe the experiment, and the theory of second order nonlinearity at x-ray wavelengths. I will discuss future directions, including the possibility of using second harmonic generation as a temporal correlator for diagnostics of ultrafast phenomena in the x-ray regime. Nano center, 9th floor seminar room Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Nano center, 9th floor seminar room
Abstract

X-ray free-electron lasers operating in the angstrom regime have recently become available. These new systems, which deliver femtosecond-scale pulses with peak intensity exceeding 1018 W/cm2, open the path to new experiments in the field of nonlinear optics at x-ray wavelengths. Recently, we have observed phase-matched x-ray second harmonic generation of a pump beam at 1.7 Å. I will describe the experiment, and the theory of second order nonlinearity at x-ray wavelengths. I will discuss future directions, including the possibility of using second harmonic generation as a temporal correlator for diagnostics of ultrafast phenomena in the x-ray regime.

Last Updated Date : 30/12/2012