Investigations of collisionally pumped optical field ionization soft-x-ray lasers

  • Stéphane Sebban
  • , Lee M. Upcraft
  • , Philippe Balcou
  • , Moana Pittman
  • , Romain Haroutunian
  • , Georges Grillon
  • , Constance Valentin
  • , Antoine Rousse
  • , Jean Philippe Rousseau
  • , Laurent Notebaert
  • , Danièle Hulin
  • , Tomas Mocek
  • , Bedrich Rus
  • , David Ros
  • , Annie Klisnick
  • , Antoine Carillon
  • , Gérard Jamelot

Research output: Contribution to journalArticlepeer-review

Abstract

We report recent investigations of optical field ionization soft-x-ray lasers. We generated the amplifying medium by focusing a circularly polarized 760-mJ, 30-fs 10-Hz Ti:sapphire laser system into a gas cell a few millimeters long filled with xenon or krypton gas. A gain of 67 cm-1 on the 4d95p-4d95d transition at 41.8 nm in Pd-like xenon and a gain-length product of 15 have been inferred at saturation. This source delivers ∼5 × 109 photons per pulse. More recently we demonstrated lasing at 32.8 nm in Ni-like krypton. The influence of the pumping energy and the laser polarization on the lasing output as well as on the far-field pattern of the x-ray laser beam are reported and discussed.

Original languageEnglish
Pages (from-to)195-202
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Jan 2003

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