1. Femtosecond X-ray diffraction: Experiments and limits
- Author
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Wark, JS, Allen, AM, Ansbro, PC, Bucksbaum, PH, Chang, Z, DeCamp, M, Falcone, RW, Heimann, PA, Johnson, SL, Kang, I, Kapteyn, HC, Larsson, J, Lee, RW, Lindenberg, AM, Merlin, R, Missalla, T, Naylor, G, Padmore, HA, Reis, DA, Scheidt, K, Sjoegren, A, Sondhauss, PC, and Wulff, M
- Abstract
Although the realisation of femtosecond X-ray free electron laser (FEL) X-ray pulses is still some time away, X-ray diffraction experiments within the sub-picosecond domain are already being performed using both synchrotron and laser-plasma based X-ray sources. Within this paper we summarise the current status of some of these experiments which, to date, have mainly concentrated on observing non-thermal melt and coherent phonons in laser-irradiated semiconductors. Furthermore, with the advent of FEL sources, X-ray pulse lengths may soon be sufficiently short that the finite response time of monochromators may themselves place fundamental limits on achievable temporal resolution. A brief review of time-dependent X-ray diffraction relevant to such effects is presented.
- Published
- 2016