Ultrafast structural dynamics studied by kilohertz time-resolved x-ray diffraction Academic Article uri icon


  • 2015 Chinese Physical Society and IOP Publishing Ltd. Ultrashort multi-keV x-ray pulses are generated by electron plasma produced by the irradiation of femtosecond pulses on metals. These sub-picosecond x-ray pulses have extended the field of x-ray spectroscopy into the femtosecond time domain. However, pulse-to-pulse instability and long data acquisition time restrict the application of ultrashort x-ray systems operating at low repetition rates. Here we report on the performance of a femtosecond laser plasma-induced hard x-ray source that operates at 1-kHz repetition rate, and provides a flux of 2.0 1010 photons/s of Cu K radiation. Using this system for time-resolved x-ray diffraction experiments, we record in real time, the transient processes and structural changes induced by the interaction of 400-nm femtosecond pulse with the surface of a 200-nm thick Au (111) single crystal.

published proceedings


author list (cited authors)

  • Guo, X., Jiang, Z., Chen, L., Chen, L., Xin, J., Rentzepis, P. M., & Chen, J.

citation count

  • 3

complete list of authors

  • Guo, Xin||Jiang, Zhou-Ya||Chen, Long||Chen, Li-Ming||Xin, Jian-Guo||Rentzepis, Peter M||Chen, Jie

publication date

  • September 2015