, Volume 12, Issue 3, pp 323-330

Beam smoothing effects on stimulated Raman and Brillouin backscattering in laser-produced plasmas

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We describe plasma physics experiments using the Nova laser that investigate the temporal and spectral characteristics of directly backscattered laser light. The stimulated Raman and Brillouin instabilities are studied for a variety of plasma conditions, drive laser intensities, and beam smoothing conditions. The experimental facility, beam smoothing techniques, and some experimental results are described.