Raman scattering in inhomogeneous laser produced plasma
Abstract
A model of Raman scattering in inhomogeneous laser produced plasma is described, which invokes enhanced Thomson scattering. The enhancement is due to pulses of hot electrons arising from laser-plasma interactions at the critical or quarter-critical surfaces. A simple model predicts the locations of two enhanced frequency bands, one between omega sub o and omega sub o/2, and the other between 2 omega sub o and omega sub o. The model is shown to fit the results of eight experiments, including a new experiment using the 6-beam Omega laser facility, converted to 351 nm. In this latter experiment, simultaneous measurement of the upscattered and downscattered bands is carried out, and good agreement is found with the enhanced Thomson model.
- Publication:
-
Unknown
- Pub Date:
- September 1985
- Bibcode:
- 1985rsil.book.....S
- Keywords:
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- Computerized Simulation;
- Hot Electrons;
- Inhomogeneity;
- Laser Plasmas;
- Plasma Diagnostics;
- Raman Spectra;
- Electromagnetic Radiation;
- Spectral Bands;
- Thomson Scattering;
- Plasma Physics