Frequency-domain interferometer for measuring the phase and amplitude of a femtosecond pulse probing a laser-produced plasma

  • J. P. Geindre
  • , P. Audebert
  • , A. Rousse
  • , F. Falliès
  • , J. C. Gauthier
  • , A. Mysyrowicz
  • , A. Dos Santos
  • , G. Hamoniaux
  • , A. Antonetti

Research output: Contribution to journalArticlepeer-review

Abstract

A frequency-domain interferometer for probing the variations of the dielectric constant of a plasma with sub-100-fs temporal resolution and λ/2000 phase resolution is described. Imaging the plasma on the entrance slit of a spectrograph provides spatial resolution along a diameter of the focal spot. The technique is used to map out the expansion of the critical density surface of a femtosecond laser-produced plasma with subnanometer spatial resolution along the laser axis.

Original languageEnglish
Pages (from-to)1997-1999
Number of pages3
JournalOptics Letters
Volume19
Issue number23
DOIs
Publication statusPublished - 1 Dec 1994

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