Energy and nonlinearity considerations for the enhanced plasma wave model of Raman scattering

Journal Article · Mon May 01 04:00:00 EDT 1989 · Phys Fluids B; (United States)

DOI:https://doi.org/10.1063/1.859029· OSTI ID:6439101

Simon, A; Short, R W

Raman scattering in nonuniform laser-produced plasma has been explained (Phys. Fluids 29, 1704 (1986)) as ordinary Raman scattering of the laser light from enhanced plasma waves in the corona. Here, a nonlinear model of the saturated plasma waves and of the fast electron pulses, which create the enhancement, is developed. The saturation level is normalized by use of absolute intensity measurements on the Nova laser (Phys. Rev. Lett. 60, 1018 (1988)), and the fast electron pulse parameters are chosen in agreement with the observed enhanced frequency band. The power in the fast electrons will then be consistent with both that in the laser source and in the drain to the saturated waves. There is agreement with all features of this Nova experiment, including some preliminary measurements of the angular variation of the scattered Raman intensity.

• Research Organization: Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299
• OSTI ID: 6439101
• Journal Information: Phys Fluids B; (United States), Journal Name: Phys Fluids B; (United States) Vol. 1:5; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
CORRELATIONS
LASER-PRODUCED PLASMA
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
PLASMA
PLASMA WAVES
RAMAN EFFECT
SATURATION