Femtosecond time-resolved x-ray diffraction with a laser-produced plasma x-ray source

Antoine Rousse; Christian Rischel; Ingo Uschmann; P. A. Albouy; Jean-Paul Geindre; Patrick Audebert; Jean-Claude J. Gauthier; Eckhart Foerster; Jean-Louis Martin; Andre Antonetti

doi:10.1117/12.331846

1 December 1998 Femtosecond time-resolved x-ray diffraction with a laser-produced plasma x-ray source

Antoine Rousse, Christian Rischel, Ingo Uschmann, P. A. Albouy, Jean-Paul Geindre, Patrick Audebert, Jean-Claude J. Gauthier, Eckhart Foerster, Jean-Louis Martin, Andre Antonetti

Author Affiliations +

Proceedings Volume 3451, Time Structure of X-Ray Sources and Its Applications; (1998) https://doi.org/10.1117/12.331846
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Optical pump, x-ray diffraction probe experiments have been used to study the lattice dynamics of organic materials using a laser-produced plasma x-ray source. The x-ray source is generated from a 10 Hz, 26 mJ, 120 fs laser beam focused on a silicon wafer target. The emitted K_(alpha ) x-ray radiation is used to probe a cadmium arachidate Langmuir-Blodgett film and a TlAP crystal optically perturbed at laser fluences from 1.8 J/cm² to 27 J/cm². Ultrafast disordering inside the lattice -- within a time scale below 600 fs to few tens of picoseconds -- is clearly observed and produce a drop of the probe x-ray diffracted signal.

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Antoine Rousse, Christian Rischel, Ingo Uschmann, P. A. Albouy, Jean-Paul Geindre, Patrick Audebert, Jean-Claude J. Gauthier, Eckhart Foerster, Jean-Louis Martin, and Andre Antonetti "Femtosecond time-resolved x-ray diffraction with a laser-produced plasma x-ray source", Proc. SPIE 3451, Time Structure of X-Ray Sources and Its Applications, (1 December 1998); https://doi.org/10.1117/12.331846

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