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New 100 Hz repetition rate soft x-ray laser plasma source for ultrafast XANES applications

  • S. Fourmaux
  • , L. Lecherbourg
  • , M. Chagnon
  • , H. C. Bandulet
  • , P. Audebert
  • , J. C. Kieffer
  • INRS-ÉMT
  • LULI

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We present here a laser based time resolved ultrafast XANES beam line operating with the 100 Hz ALLS facility laser system (100 mJ and 35 fs at 800 nm wavelength). This system is based on a broadband soft x-ray plasma source, produced with a tantalum solid target, and a grazing flat field incidence grating designed to work in the 1-5 nm range. This femtosecond x-ray absorption spectroscopy experimental set up is used to study ultrafast phase transition in vanadium dioxide (VO2). In this model system we are probing the electronic dynamics occurring during semiconductor to metal phase transition following excitation by a femtosecond laser pulse.

Original languageEnglish
Title of host publicationUltrafast X-Ray Sources and Detectors
DOIs
Publication statusPublished - 1 Dec 2007
EventUltrafast X-Ray Sources and Detectors - San Diego, CA, United States
Duration: 26 Aug 2007 → 27 Aug 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6703
ISSN (Print)0277-786X

Conference

ConferenceUltrafast X-Ray Sources and Detectors
Country/TerritoryUnited States
CitySan Diego, CA
Period26/08/07 → 27/08/07

Keywords

  • Femtosecond laser
  • Plasma x-ray source
  • Soft x-ray spectroscopy
  • Ultrafast phase transition

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