A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay
- University of California, Davis---Livermore, Livermore, California 94550 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
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.
- OSTI ID:
- 544841
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 4; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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