Optical Mixing Controlled Stimulated Scattering Instabilities Using Blue-Green Interaction Beams
Abstract
The optical mixing of blue and green laser beams in an underdense exploding foil plasma where a resonant EPW can be resonantly generated was examined experimentally on the Omega laser facility at LLE. The effect of this optical mixing generated large amplitude EPW on the SRS backscattering of a separate blue interaction/witness beam was measured. The backscattering and transmission of the Green beam, the backscattering of the witness beam and the transmission of the crossing blue beam were studied as a function of different beam energies to see how to optimize the disruption of the witness beam's backscattering levels by the introduction of controlled levels of fluctuations and incoherence into the plasma. Results will be compared to numerical simulations and previous PRI experiments where large levels of IAW turbulence was generated by using same color crossing laser beams.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- October 2003
- Bibcode:
- 2003APS..DPPQO1009M