Saturation of stimulated Raman scattering by the excitation of strong Langmuir turbulence

Journal Article · Mon Apr 26 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.2569· OSTI ID:6493479

Bezzerides, B; DuBois, D F; Rose, H A ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Numerical studies of a model of stimulated Raman scattering (SRS) coupled to Langmuir turbulence show that once the collisional threshold is exceeded for parametric decay of the SRS daughter Langmuir wave the noncollisional dissipation resulting from Langmuir collapse can strongly saturate the Langmuir wave and the resulting SRS reflectivity. The model provides information on the total rate of hot electron generation. Scaling laws for the reflectivity as a function of laser and plasma parameters are found.

• OSTI ID: 6493479
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:17; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340 -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
COHERENT SCATTERING
COLLISIONS
DATA
ELECTROMAGNETIC RADIATION
ENERGY
ENERGY LOSSES
INFORMATION
INSTABILITY
LASER RADIATION
LASER-PRODUCED PLASMA
LOSSES
NUMERICAL DATA
NUMERICAL SOLUTION
ONE-DIMENSIONAL CALCULATIONS
PARAMETRIC INSTABILITIES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA SIMULATION
PLASMA WAVES
RADIATIONS
RAMAN EFFECT
SATURATION
SCALING LAWS
SCATTERING
SIMULATION
THEORETICAL DATA
THRESHOLD ENERGY
TURBULENCE