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Proceedings Paper

Reflectivity of stimulated Brillouin scattering in picosecond time scales
Author(s): C. Labaune; Wojciech Rozmus; Hector A. Baldis; Patrick Mounaix; Denis Pesme; S. D. Baton; Bruno LaFontaine; David M. Villeneuve; G. D. Enright
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Paper Abstract

Measurements of reflectivity of stimulated Brillouin scattering, from an underdense, homogeneous plasma, irradiated by a 10 ps-1.06μm laser pulse, show an increase from 10-4 to 10-2, as the laser intensity is varied between 1013 to 1015 W/cm2. Numerical simulations have been developed to interpret these data. At low laser intensity, (<1014 W/cm2), the low reflectivity is well explained as being due to saturation of the instability in the convective regime, and good agreement with numerical simulations has been obtained. At high laser intensity, the model predicts higher reflectivities than measured in the experiment, although non-linear effects in ion sound waves evolution have been observed.

Paper Details

Date Published: 1 June 1991
PDF: 6 pages
Proc. SPIE 1413, Short-Pulse High-Intensity Lasers and Applications, (1 June 1991); doi: 10.1117/12.46146
Show Author Affiliations
C. Labaune, Ecole Polytechnique (France)
Wojciech Rozmus, Ecole Polytechnique (France)
Hector A. Baldis, National Research Council Canada (Canada)
Patrick Mounaix, Ecole Polytechnique (France)
Denis Pesme, Ecole Polytechnique (France)
S. D. Baton, Ecole Polytechnique (France)
Bruno LaFontaine, National Research Council Canada (Canada)
David M. Villeneuve, National Research Council Canada (Canada)
G. D. Enright, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 1413:
Short-Pulse High-Intensity Lasers and Applications
Hector A. Baldis, Editor(s)

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