Laser light scattering from fluctuations enhanced by stimulated Raman scattering

Journal Article · Sun Mar 21 23:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.1810· OSTI ID:6940686

Kolber, T; Rozmus, W; Tikhonchuk, V T ^[1]; Mounaix, P; Pesme, D ^[2]

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1. Department of Physics, University of Alberta, Edmonton, Alberta T6G2J1 (Canada)
2. Centre de Physique Theorique, Ecole Polytechnique, 91128 Palaiseau CEDEX (France)

Numerical analysis of the system of Zakharov and electromagnetic wave equations shows that in the nonlinear stage of saturation of stimulated Raman backscattering a wide spectrum of plasma fluctuations is excited. These fluctuations manifest themselves in enhanced levels of Brillouin and forward Raman scattering. The coupling between stimulated Raman scattering and these secondary scattering processes is theoretically described. We derive new scaling laws for enhanced Brillouin and forward Raman scattering, which can be tested in the current laser-plasma interaction experiments.

• OSTI ID: 6940686
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:12; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
BACKSCATTERING
BRILLOUIN EFFECT
COHERENT SCATTERING
DATA
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
FLUCTUATIONS
FOURIER ANALYSIS
INFORMATION
LASER-PRODUCED PLASMA
MATHEMATICS
NONLINEAR PROBLEMS
NUMERICAL ANALYSIS
NUMERICAL DATA
OPTICAL PROPERTIES
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
PLASMA
RADIATIONS
RAMAN EFFECT
REFLECTIVITY
SATURATION
SCATTERING
SURFACE PROPERTIES
THEORETICAL DATA
VARIATIONS
WAVE EQUATIONS