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Polychromatic x-ray production in helium from a femtosecond high-intensity laser system

  • K. Ta Phuoc
  • , A. Rousse
  • , L. Notebaert
  • , M. Pittman
  • , J. P. Rousseau
  • , V. Malka
  • , S. Fritzler
  • , S. Sebban
  • , P. Balcou
  • , D. Hulin
  • , J. R. Marqués
  • , P. G. David
  • Laboratory d'Optique Appliquée, ENSTA, CNRS-École Polytechnique
  • LULI

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Polychromatic x-ray radiation has been produced during the relativistic interaction of a 50-TW femtosecond laser with a helium gas jet. We have characterized the spectrum and the angular distribution of the x-ray emission as well as its dependency on the laser polarization and on the plasma electronic density. We have observed a broad continuous spectrum peaking at 0.15 keV with a significant tail up to 2 keV. The radiation was fairly collimated.

Original languageEnglish
Pages (from-to)221-223
Number of pages3
JournalJournal of the Optical Society of America B: Optical Physics
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Jan 2003

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