Parametric backscattering and absorptive instabilities in homogeneous unmagnetized plasmas
Abstract
The paper considers the two scattering instabilities photon decays into photon plus plasmon (t → t' + l) and photon decays into photon plus phonon (t → t' + s) and the two absorptive instabilities photon decays into plasmon plus plasmon (t → l + l' ) and photon decays into plasmon plus phonon (t → l + s). The corresponding growth rates and thresholds are determined for a homogeneous, unmagnetized plasma. The regimes of weak and moderately strong pump fields are examined, together with the possibility of purely-growing instabilities for the decays t → t' + s and t→ l + s.
- Publication:
-
Journal of Plasma Physics
- Pub Date:
- August 1975
- DOI:
- 10.1017/S0022377800025563
- Bibcode:
- 1975JPlPh..14..105B
- Keywords:
-
- Backscattering;
- Magnetohydrodynamic Stability;
- Plasma Waves;
- Plasma-Electromagnetic Interaction;
- Plasmons;
- S Waves;
- Brillouin Effect;
- Electromagnetic Absorption;
- Electromagnetic Scattering;
- Ion Acoustic Waves;
- Landau Damping;
- Light Scattering;
- Plasma Density;
- Poisson Equation;
- Raman Spectra;
- Transverse Waves;
- Plasma Physics