Stimulated Raman scattering from a density maximum in a laser-produced plasma

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Phys Fluids B; (United States)

DOI:https://doi.org/10.1063/1.858990· OSTI ID:6316846

Barr, H C; Boyd, T J.M.; Mackwood, A P

Thresholds and growth rates for stimulated Raman scattering from a plasma density maximum, corresponding to laser--target burnthrough experiments, are obtained by numerical solution of the full-wave Raman scattering equations. This supplements and extends to new regimes the WKB analysis of Rosenbluth (Phys. Rev. Lett. 29, 565 (1972)) and the quasiglobal analysis of Williams and Johnston (Phys. Fluids B 1, 188 (1989)). The results show unexpected scalings with laser intensity well above threshold, and permit absolutely unstable forward scattering with thresholds comparable to those for backward scattering.

• Research Organization: University College of North Wales, University of Wales, Bangor, Wales
• OSTI ID: 6316846
• Journal Information: Phys Fluids B; (United States), Journal Name: Phys Fluids B; (United States) Vol. 1:6; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
BACKSCATTERING
COHERENT SCATTERING
ENERGY
INHOMOGENEOUS PLASMA
INSTABILITY GROWTH RATES
LASER-PRODUCED PLASMA
NUMERICAL SOLUTION
PLASMA
PLASMA DENSITY
RAMAN EFFECT
SATURATION
SCALING LAWS
SCATTERING
THRESHOLD ENERGY
WKB APPROXIMATION