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Ion mobility influence on stimulated Raman scattering in homogeneous laser-irradiated plasma

Published online by Cambridge University Press:  09 March 2009

G. Bonnaud
G. Bonnaud
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Etudes de Limeil-Valenton B.P. 27 94190-Villeneuve-Saint-Georges, France
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Abstract

1½ D computer simulations have been performed to illustrate the influence of ion dynamics on stimulated Raman scattering in laser irradiated plasmas. A flat density profile has been used. Backward and forward scatter and heated electron distribution have been studied as a function of ion mass and ion temperature. The results show clearly that the lighter the ions, the more inhibited the Raman scatter and associated fast electron production. Futhermore, when ions are cold enough to allow Brillouin scattering release, Raman scatter, as well as associated suprathermal electrons is even more reduced. These observations evidence the complex non-linear coupling of the electron plasma waves driven by the Raman instability and the ion fluctuations which can exist in the plasma.

Type
Research Article
Information
Laser and Particle Beams , Volume 5 , Issue 1 , February 1987 , pp. 101 - 114
Copyright
Copyright © Cambridge University Press 1987

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References

Aldrich, C., Bezzerides, B., Dubois, D. F. & Rose, H. 1985 Los Alamos report LA-UR 85–2099.Google Scholar
Baldis, H. A. & Walsh, C. J. 1983 Phys. Fluids 26, 1364.CrossRefGoogle Scholar
Bonnaud, G. & Reisse, C. 1984 14th Anomalous Absorption Conference, Charlottesville, Poster C8 and 1986 Nucl. Fusion, 26, 633.Google Scholar
Bonnaud, G. 1985 15th Anomalous Absorption Conference, Banff, Poster F9.Google Scholar
Dawson, J. M. & Oberman, C. 1963 Phys. Fluids, 6, 394.CrossRefGoogle Scholar
Forslund, D. W., Kindel, J. M. & Lindman, E. L. 1975 Phys. Fluids, 18, 1002CrossRefGoogle Scholar
Karttunen, S. J. 1980 Plasma Phys. 22, 151; Karttunen S. J. 1981 Phys. Rev. A23, 2006.CrossRefGoogle Scholar
Langdon, A. B., Lasinski, B. F. & Kruer, W. L. 1979 Phys. Rev. Lett. 43, 133.CrossRefGoogle Scholar
Pellat, R. 1980 Parametric instabilities, Les Houches Summer School, France.Google Scholar
Rozmus, W., Offenberger, A. A. & Fedosejevs, R. 1983 Phys. Fluids, 26, 1071.CrossRefGoogle Scholar
Walsh, C. J., Villeneuve, D. M. & Baldis, H. A. 1984 Phys. Rev. Lett. 15, 1445.CrossRefGoogle Scholar