Onset and Saturation of the Spectral Intensity of Stimulated Brillouin Scattering in Inhomogeneous Laser-Produced Plasmas

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.79· OSTI ID:286036

Drake, R P; Watt, R G; Estabrook, K ^[1]

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1. Plasma Physics Research Institute, Lawrence Livermore National Laboratory, L-418, P.O. Box 808, Livermore, California 94551 (United States)

Measurements are reported of the spectral intensity of emissions attributed to stimulated Brillouin scattering (SBS) of 0.53{mu}m laser light from an inhomogeneous CH plasma, at densities of interest to laser fusion of x-ray lasers. The onset of SBS confirms recent theory, and no dependence of the saturated spectral reflectivity on density or pump strength is seen. The total reflectivity, which reaches 15{percent}, increases with the spectral width of the SBS. These quantitative data can test theory and simulations of saturation and also have implications for the National Ignition Facility. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 286036
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BRILLOUIN EFFECT
DENSITY
EMISSION
INHOMOGENEOUS PLASMA
LASER-PRODUCED PLASMA
REFLECTIVITY
SATURATION
SCATTERING
SPECTRAL FUNCTIONS
X-RAY LASERS