Parametric processes in underdense UV laser-produced plasmas
Abstract
Studies of UV laser plasma interactions in underdense plasmas, using a single beam (lambda sub L) = 351-nm, E (sub L) 50 J, I (sub L) is less than or equal to (10 to the 15th power W/sq cm) incident on foam targets are described. Average densities of these targets were 2n (sub c)/3, n (sub c)/3 and n (sub c)/10 (n (sub c): critical density). An extraordinary correlation between the Brillouin backscatter signal and the 3(OMEGA)/2 emission as a function of irradiation intensity was observed, indicative of possible coupling between these parametric processes.
- Publication:
-
Presented at the Meeting of the Plasma Physics Division of the American Physical Society
- Pub Date:
- October 1984
- Bibcode:
- 1984aps..meet.....T
- Keywords:
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- Backscattering;
- Brillouin Effect;
- Coupling;
- Laser Plasmas;
- Laser Targets;
- Ultraviolet Radiation;
- Foams;
- Independent Variables;
- Ion Acoustic Waves;
- Plasma Decay;
- Plasma Interactions;
- Plasmons;
- Plasma Physics