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Title: A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay

Abstract

The theory of the two-plasmon decay instability is recast in the form of a variational principle for the pump strength or intensity of the incident laser. This allows the calculation of growth rates, frequency shifts, and threshold conditions for two-plasmon decay modes that occur in integer power law density profiles, including the effects of oblique incidence of the laser and both S and P polarizations. The transition between parabolic profiles occurring at the peak of an exploding foil target and linear profiles on its flanks is treated as well.

Authors:
 [1];  [2]
  1. University of California, Davis---Livermore, Livermore, California 94550 (United States)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
544841
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 4; Journal Issue: 11; Other Information: PBD: Nov 1997
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; INHOMOGENEOUS PLASMA; PARAMETRIC INSTABILITIES; PLASMONS; EXPLODING WIRES; VARIATIONAL METHODS; DECAY; POLARIZATION; FOILS; MATHEMATICAL MODELS; EXPLOSIONS

Citation Formats

Afeyan, B B, and Williams, E A. A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay. United States: N. p., 1997. Web. doi:10.1063/1.872506.
Afeyan, B B, & Williams, E A. A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay. United States. doi:10.1063/1.872506.
Afeyan, B B, and Williams, E A. Sat . "A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay". United States. doi:10.1063/1.872506.
@article{osti_544841,
title = {A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay},
author = {Afeyan, B B and Williams, E A},
abstractNote = {The theory of the two-plasmon decay instability is recast in the form of a variational principle for the pump strength or intensity of the incident laser. This allows the calculation of growth rates, frequency shifts, and threshold conditions for two-plasmon decay modes that occur in integer power law density profiles, including the effects of oblique incidence of the laser and both S and P polarizations. The transition between parabolic profiles occurring at the peak of an exploding foil target and linear profiles on its flanks is treated as well.},
doi = {10.1063/1.872506},
journal = {Physics of Plasmas},
number = 11,
volume = 4,
place = {United States},
year = {1997},
month = {11}
}