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Title: Transient Development of Backward Stimulated Raman and Brillouin Scattering on a Picosecond Time Scale Measured by Subpicosecond Thomson Diagnostic

Abstract

The excitation and the relaxation of the plasma waves and ion acoustic waves (IAW), respectively, driven by stimulated Raman (SRS) and Brillouin (SBS) backscatterings have been experimentally investigated with short-pulse lasers. The spectra have been obtained with a 0.3 ps time resolution. It is shown that SRS develops before SBS and suddenly decays around the peak of the pump, as the IAW reaches saturation. On this short time scale, electron kinetic effects play a major role for SRS saturation, contrary to ion dynamics. These results are supported by particle-in-cell simulations.

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Commissariat a l'Energie Atomique, Direction d'Ile de France, 91680 Bruyeres-le-Chatel (France)
Publication Date:
OSTI Identifier:
20777380
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 97; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevLett.97.015001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BACKSCATTERING; BRILLOUIN EFFECT; ELECTRONS; EXCITATION; ION ACOUSTIC WAVES; PULSES; RAMAN SPECTRA; RELAXATION; SATURATION; SIMULATION; TIME RESOLUTION

Citation Formats

Rousseaux, C, Gremillet, L, Casanova, M, Loiseau, P, Rabec Le Gloahec, M, Baton, S D, Amiranoff, F, Adam, J C, Heron, A, LULI, UMR 7605, CNRS-CEA-Ecole Polytechnique-Universite Paris VI, Ecole Polytechnique, 91128 Palaiseau, and Centre de Physique Theorique, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex. Transient Development of Backward Stimulated Raman and Brillouin Scattering on a Picosecond Time Scale Measured by Subpicosecond Thomson Diagnostic. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.97.015001.
Rousseaux, C, Gremillet, L, Casanova, M, Loiseau, P, Rabec Le Gloahec, M, Baton, S D, Amiranoff, F, Adam, J C, Heron, A, LULI, UMR 7605, CNRS-CEA-Ecole Polytechnique-Universite Paris VI, Ecole Polytechnique, 91128 Palaiseau, & Centre de Physique Theorique, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex. Transient Development of Backward Stimulated Raman and Brillouin Scattering on a Picosecond Time Scale Measured by Subpicosecond Thomson Diagnostic. United States. https://doi.org/10.1103/PhysRevLett.97.015001
Rousseaux, C, Gremillet, L, Casanova, M, Loiseau, P, Rabec Le Gloahec, M, Baton, S D, Amiranoff, F, Adam, J C, Heron, A, LULI, UMR 7605, CNRS-CEA-Ecole Polytechnique-Universite Paris VI, Ecole Polytechnique, 91128 Palaiseau, and Centre de Physique Theorique, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex. 2006. "Transient Development of Backward Stimulated Raman and Brillouin Scattering on a Picosecond Time Scale Measured by Subpicosecond Thomson Diagnostic". United States. https://doi.org/10.1103/PhysRevLett.97.015001.
@article{osti_20777380,
title = {Transient Development of Backward Stimulated Raman and Brillouin Scattering on a Picosecond Time Scale Measured by Subpicosecond Thomson Diagnostic},
author = {Rousseaux, C and Gremillet, L and Casanova, M and Loiseau, P and Rabec Le Gloahec, M and Baton, S D and Amiranoff, F and Adam, J C and Heron, A and LULI, UMR 7605, CNRS-CEA-Ecole Polytechnique-Universite Paris VI, Ecole Polytechnique, 91128 Palaiseau and Centre de Physique Theorique, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex},
abstractNote = {The excitation and the relaxation of the plasma waves and ion acoustic waves (IAW), respectively, driven by stimulated Raman (SRS) and Brillouin (SBS) backscatterings have been experimentally investigated with short-pulse lasers. The spectra have been obtained with a 0.3 ps time resolution. It is shown that SRS develops before SBS and suddenly decays around the peak of the pump, as the IAW reaches saturation. On this short time scale, electron kinetic effects play a major role for SRS saturation, contrary to ion dynamics. These results are supported by particle-in-cell simulations.},
doi = {10.1103/PhysRevLett.97.015001},
url = {https://www.osti.gov/biblio/20777380}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 1,
volume = 97,
place = {United States},
year = {Fri Jul 07 00:00:00 EDT 2006},
month = {Fri Jul 07 00:00:00 EDT 2006}
}