Quenching of two-plasmon decay and stimulated-Raman-scattering instabilities by profile modification
Abstract
The development of the electron density distribution in a CO2-laser irradiated underdense N2 gas jet is investigated interferometrically and is correlated to the observation of fast electrons generated by the two-plasmon decay and stimulated-Raman-scattering instabilities. During the 2 nsec laser pulse the quarter critical density scale length initially increases but soon ponderomotive forces steepen the profile resulting in a quenching of the fast electron emission.
- Publication:
-
Physics of Fluids
- Pub Date:
- November 1983
- DOI:
- 10.1063/1.864084
- Bibcode:
- 1983PhFl...26.3162M
- Keywords:
-
- Laser Plasmas;
- Magnetohydrodynamic Stability;
- Plasma Decay;
- Plasmons;
- Quenching (Cooling);
- Raman Spectra;
- Carbon Dioxide Lasers;
- Electron Distribution;
- Gas Jets;
- Laser Fusion;
- Nitrogen;
- Ponderomotive Forces;
- Pulsed Lasers;
- Plasma Physics