Femtosecond X-ray diffraction: Experiments and limits

Femtosecond X-ray diffraction: Experiments and limits

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 cur...

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Bibliographic Details
Main Authors: Wark, J, Allen, A, Ansbro, P, Bucksbaum, P, Chang, Z, DeCamp, M, Falcone, R, Heimann, P, Johnson, S, Kang, I, Kapteyn, H, Larsson, J, Lee, R, Lindenberg, A, Merlin, R, Missalla, T, Naylor, G, Padmore, H, Reis, D, Scheidt, K, Sjoegren, A, Sondhauss, P, Wulff, M
Format: Conference item
Published: 2001
Description
Summary: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.

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