Abstract
The observation of an anti-Stokes satellite in the spectrum of light backscattered from a CO2 laser plasma is reported. Its origin is found to be Thomson scattering of the incident light from a counterpropagating mode-coupled plasma wave. The parent electron and ion waves in the mode-coupling process were driven by stimulated Raman and Brillouin backscattering. The parent and daughter plasma waves were detected by ruby laser Thomson scattering. A computer simulation modeling the experiment shows further cascading of the Stokes backscattered light to lower frequencies, apparently a result of its rescattering from another, higher phase velocity, counterpropagating coupled mode. Comparisons with theoretical predictions are presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 183-187 |
| Number of pages | 5 |
| Journal | Physics of Fluids B |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1989 |
ASJC Scopus subject areas
- Computational Mechanics
- Condensed Matter Physics
- Mechanics of Materials
- Physics and Astronomy(all)
- Fluid Flow and Transfer Processes
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Umstadter, D., Mori, W. B., & Joshi, C. (1989). The coupling of stimulated Raman and Brillouin scattering in a plasma. Physics of Fluids B, 1(1), 183-187. https://doi.org/10.1063/1.859085