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

  • A. Rousse
  • , C. Rischel
  • , I. Uschmann
  • , P. A. Albouy
  • , J. P. Geindre
  • , P. Audebert
  • , J. C. Gauthier
  • , E. Forster
  • , J. L. Martin
  • , A. Antonetti

Research output: Contribution to journalConference articlepeer-review

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 Kα 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.

Original languageEnglish
Pages (from-to)22-29
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3451
Publication statusPublished - 1 Dec 1998
EventProceedings of the 1998 Conference on Time Structure of X-Ray Sources and Its Applications - San Diego, CA, USA
Duration: 23 Jul 199824 Jul 1998

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