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Observation of x-ray fluorescence resulting from photoionization by a femtosecond laser-produced plasma x-ray source

  • A. Rousse
  • , A. Antonetti
  • , P. Audebert
  • , A. Dos Santos
  • , F. Fallies
  • , J. P. Geindre
  • , G. Grillon
  • , A. Mysyrowicz
  • , J. C. Gauthier
  • Laboratory d'Optique Appliquée, ENSTA, CNRS-École Polytechnique

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We demonstrate the first observation of X-ray fluorescence resulting from inner-shell photoionization by a subpicosecond laser-produced plasma X-ray source. 8 keV electrons produced by a 100 fs laser at 3*1016 w cm-2 intensity create K-shell vacancies in a Ti layer. This generates a 4.51 keV K alpha X-ray pulse which is used to photoionize a Ca sample. Fluorescence of Ca at 3.69 keV (K alpha) and 4.01 keV (K beta) is observed as a result of Ti K alpha photoionization.

Original languageEnglish
Pages (from-to)L697, L701
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume27
Issue number21
DOIs
Publication statusPublished - 14 Nov 1994

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