Feedback effects on stimulated backscattering from laser-produced plasmas

Journal Article · Fri Jun 01 04:00:00 EDT 1984 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864785· OSTI ID:6731980

Mitchel, G R; Johnson, T W; Pepin, H

Brillouin and Raman backscattering can be enhanced by reflective feedback from underdense plasma structures, such as quarter-critical density profile steepening due to two-plasmon decay. Rapid time modulation of broadband scatter can be explained by modulation of the feedback from a variation of the round trip phase shift due either to motion of the feedback surface, in Brillouin backscattering, or by periodic creation and destruction of the feedback surface itself, as in Raman backscattering.

• Research Organization: 2238 rue du Parc, Varennes, Quebec, Canada JOL 2P0
• OSTI ID: 6731980
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 27:6; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
AUGMENTATION
BRILLOUIN EFFECT
COHERENT SCATTERING
FEEDBACK
INSTABILITY
LASER-PRODUCED PLASMA
PARAMETRIC INSTABILITIES
PLASMA
PLASMA DENSITY
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMONS
QUASI PARTICLES
RAMAN EFFECT
SCATTERING