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Proceedings Paper

Experimental observation of the Langmuir decay instability associated with the stimulated Raman scattering
Author(s): S. Depierreux; C. Labaune; Hector A. Baldis; Julien Fuchs; V. T. Tikhonchuk
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Paper Abstract

An experiment is performed which definitely demonstrates the occurrence of the Langmuir decay instability in the laser plasma interaction. Stimulated Raman scattering is used as a source of well-defined electron plasma waves. Both products of the instability are observed simultaneously using Thomson scattering of a short wavelength probe beam. Resolution of the Thomson scattering measurements in wavelength, wavenumber, time and space allow an unambiguous identification of the ion acoustic waves. Spatial and temporal correlation of these ion acoustic waves with the stimulated Raman scattering activity is observed whereas they appear to be anticorrelated in time and space with the stimulated Brillouin scattering activity.

Paper Details

Date Published: 23 April 2001
PDF: 4 pages
Proc. SPIE 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter, (23 April 2001); doi: 10.1117/12.425633
Show Author Affiliations
S. Depierreux, Ecole Polytechnique (France)
C. Labaune, Ecole Polytechnique (France)
Hector A. Baldis, Lawrence Livermore National Lab. (United States)
Julien Fuchs, Ecole Polytechnique (France)
V. T. Tikhonchuk, Ecole Polytechnique and P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 4424:
ECLIM 2000: 26th European Conference on Laser Interaction with Matter
Milan Kalal; Karel Rohlena; Milan Sinor, Editor(s)

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