High frequency instabilities in underdense plasmas produced by a 0. 35. mu. m laser beam
Book
·
OSTI ID:5072273
Experiments to investigate the scattering and absorption characteristics of stimulated Raman scattering and two-plasmon decay instabilities in underdense plasmas produced by 0.35 micron laser radiation are described and compared with computer simulations. Raman back and sidescattering below the convective threshold has been observed and simulations indicate the instability is driven by self-focusing in a preformed plasma. Observations of high energy electrons suggest two plasmon decay as the generating mechanism. Raman backscattering reaches high levels with low density plastic targets.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5072273
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ABSORPTION
BACKSCATTERING
DATA
DENSITY
ENERGY ABSORPTION
EXPERIMENTAL DATA
FOCUSING
FOILS
INFORMATION
INSTABILITY
LASER FUSION REACTORS
LASER TARGETS
LASER-PRODUCED PLASMA
MATERIALS
NUMERICAL DATA
PARAMETRIC INSTABILITIES
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMONS
PLASTICS
QUASI PARTICLES
RAMAN EFFECT
SCATTERING
SYNTHETIC MATERIALS
TARGETS
THERMONUCLEAR REACTORS
TIME DEPENDENCE
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ABSORPTION
BACKSCATTERING
DATA
DENSITY
ENERGY ABSORPTION
EXPERIMENTAL DATA
FOCUSING
FOILS
INFORMATION
INSTABILITY
LASER FUSION REACTORS
LASER TARGETS
LASER-PRODUCED PLASMA
MATERIALS
NUMERICAL DATA
PARAMETRIC INSTABILITIES
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMONS
PLASTICS
QUASI PARTICLES
RAMAN EFFECT
SCATTERING
SYNTHETIC MATERIALS
TARGETS
THERMONUCLEAR REACTORS
TIME DEPENDENCE