Measurements of Brillouin-Backscatter Dependence on Density-Scale Lengths near Critical Density
Abstract
The Brillouin backscatter fraction was measured from laser-produced spherical plasmas with prepared scale lengths of from 5 to 50 μm. The scale lengths in the region of 0.1<=nnc<=1 were measured using double-pulse holographic interferometry. The backscatter energy was found to vary from 5% to 25% of the incident energy over the range of scale lengths measured. The spectra of the backscatter light were obtained and show the red shifts characteristic of Brillouin scattering.
- Publication:
-
Physical Review Letters
- Pub Date:
- February 1980
- DOI:
- 10.1103/PhysRevLett.44.400
- Bibcode:
- 1980PhRvL..44..400T
- Keywords:
-
- Backscattering;
- Brillouin Effect;
- Laser Plasma Interactions;
- Density Distribution;
- Plasma Density;
- Red Shift;
- Plasma Physics