Transmission through highly overdense plasma slabs with a subpicosecond relativistic laser pulse

  • J. Fuchs
  • , J. C. Adam
  • , F. Amiranoff
  • , S. D. Baton
  • , P. Gallant
  • , L. Gremillet
  • , A. Héron
  • , J. C. Kieffer
  • , G. Laval
  • , G. Malka
  • , J. L. Miquel
  • , P. Mora
  • , H. Pépin
  • , C. Rousseaux

Research output: Contribution to journalArticlepeer-review

Abstract

Transmission of a subpicosecond relativistic laser pulse is observed through solid foils and preformed overcritical plasmas. Transmission rates near 10% for densities above 10×nc are measured. A moderately relativistic strong threshold in intensity is found in order to observe this effect. The experimental results as well as preliminary particle-in-cell simulations suggest that for thin solid foils the observed transmission is explicable by rapid heating and expansion to transmissive conditions during the pulse. Self-induced transparency and hole boring processes apply to thicker preformed plasmas. These results have important implications in fast ignition for inertial confinement fusion.

Original languageEnglish
Pages (from-to)2326-2329
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number11
DOIs
Publication statusPublished - 1 Jan 1998

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