Stimulated Brillouin scattering in the strong coupling regime

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871618· OSTI ID:286960

Guzdar, P N; Liu, C S ^[1]; Lehmberg, R H ^[2]

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1. Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742-3511 (United States)
2. Laser Plasma Branch, Naval Research Laboratory, Washington, D.C. 20375-5346 (United States)

Stimulated Brillouin scattering (SBS) has been reexamined in the strong coupling limit. The three-wave interaction in the strong coupling regime, which gives rise to a purely growing mode for wave numbers {ital k}{approx_gt}2{ital k}{sub 0}, where {ital k}{sub 0} is the wave vector of the pump wave, has been studied. This regime was first found by Cohen and Max [Phys. Fluids {bold 22}, 1121 (1979)]. In this regime, for a flowing plasma, a significant portion of the unstable spectrum is found to be blueshifted even for the Mach number equal to unity. For the inhomogeneous case, the convective gain in the strong coupling limit turns out to be identical to the gain in the SBS in the weak coupling limit regime. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 286960
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
BRILLOUIN EFFECT
DISPERSION RELATIONS
HOMOGENEOUS PLASMA
LASER RADIATION
LIGHT SCATTERING
SOUND WAVES
STRONG-COUPLING MODEL