Demonstration of a picosecond Bragg switch for hard x-rays in a synchrotron-based pump-probe experiment
Materials Science
2019-05-16 v2
Abstract
We report a benchmark experiment that demonstrates shortening of hard x-ray pulses in a synchrotron-based optical pump - x-ray probe experiment. The pulse shortening device, a picosecond Bragg switch, reduces the temporal resolution of an incident x-ray pulse to 7.5 ps. We employ the Bragg switch to monitor propagating sound waves in nanometer-thin epitaxial films. With the experimental data we infer pulse duration, diffraction efficiency and switching contrast of the device. A detailed efficiency analysis shows, that the switch can deliver up to 1010 photons/sec in high-repetition rate synchrotron experiments.
Keywords
Cite
@article{arxiv.1812.07899,
title = {Demonstration of a picosecond Bragg switch for hard x-rays in a synchrotron-based pump-probe experiment},
author = {M. Sander and R. Bauer and V. Kabanova and M. Levantino and M. Wulff and D. Pfuetzenreuter and J. Schwarzkopf and P. Gaal},
journal= {arXiv preprint arXiv:1812.07899},
year = {2019}
}