The coupling of stimulated Raman and Brillouin scattering in a plasma

D. Umstadter, W. B. Mori, C. Joshi

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The observation of an anti-Stokes satellite in the spectrum of light backscattered from a CO2 laser plasma is reported. Its origin is found to be Thomson scattering of the incident light from a counterpropagating mode-coupled plasma wave. The parent electron and ion waves in the mode-coupling process were driven by stimulated Raman and Brillouin backscattering. The parent and daughter plasma waves were detected by ruby laser Thomson scattering. A computer simulation modeling the experiment shows further cascading of the Stokes backscattered light to lower frequencies, apparently a result of its rescattering from another, higher phase velocity, counterpropagating coupled mode. Comparisons with theoretical predictions are presented.

Original languageEnglish (US)
Pages (from-to)183-187
Number of pages5
JournalPhysics of Fluids B
Volume1
Issue number1
DOIs
StatePublished - 1989

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'The coupling of stimulated Raman and Brillouin scattering in a plasma'. Together they form a unique fingerprint.

  • Cite this