Seed laser chirping for enhanced backward Raman amplification in plasmas

Z. Toroker, V. M. Malkin, Nathaniel J. Fisch

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

Backward Raman compression in plasma enables pulse compression to intensities not available using material gratings. Mediating the compression with higher density plasma generally produces shorter and therefore more intense output pulses. However, very high density plasma, even if sufficiently tenuous to be transparent to the laser, also produces group velocity dispersion of the amplified pulse, deleteriously affecting the interaction. What is shown here is that, by chirping the seed pulse, the group velocity dispersion may in fact be used advantageously, achieving the maximum intensities over the shortest distances while minimizing unwanted effects.

Original languageEnglish (US)
Article number085003
JournalPhysical review letters
Volume109
Issue number8
DOIs
StatePublished - Aug 22 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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