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On the dynamics of ponderomotive filamentation of laser beams in a plasma

Published online by Cambridge University Press:  09 March 2009

J. Limpouch
Affiliation:
Computer Physics Group, Faculty of Nuclear Science and Physical Engineering, Technical University of Prague, Břehová 7, 115 19 Prague 1, Czechoslovakia
G. Lončar
Affiliation:
Computer Physics Group, Faculty of Nuclear Science and Physical Engineering, Technical University of Prague, Břehová 7, 115 19 Prague 1, Czechoslovakia
I. G. Lebo
Affiliation:
Lebedev Physical Institute of Academy of Science, Moscow, U.S.S.R.
V. B. Rozanov
Affiliation:
Lebedev Physical Institute of Academy of Science, Moscow, U.S.S.R.

Abstract

The influence of ponderomotive force-induced plasma motion on filamentation is examined, using both linear and non-linear descriptions. Although the time asymptote of the process is identical to the stationary convective amplification of filaments, the dynamics of the plasma response may have a serious impact on the transient behaviour of filamentation. The plasma motion contains large amplitude oscillations of inhomogeneities in the laser beam with maxima that substantially exceed the asymptotic value and temporary growth of the very narrow filaments, which cannot be amplified in the stationary approximation.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1988

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References

Basov, N. G. et al. 1984 Laser and Particle Beams 2, 103.CrossRefGoogle Scholar
Caruso, A. & Strangio, C. 1986 Laser and Particle Beams 4, 499.CrossRefGoogle Scholar
Gorbunov, L. M. & Shirokov, A. S. 1985 Kvantovaja elektronika 12, 146.Google Scholar
Herbst, M. J. et al. 1981 Phys. Rev. Lett. 46, 328.CrossRefGoogle Scholar
Hora, M. 1969 Z. Phys. 225, 156.CrossRefGoogle Scholar
Hora, H. 1975 Phys. Fluids 28, 3705.CrossRefGoogle Scholar
Jones, D. A. et al. 1982 Phys. Fluids 25, 2295.CrossRefGoogle Scholar
Kaw, P., Schmidt, G. & Wilcox, T. 1973 Phys. Fluids 16, 1522.CrossRefGoogle Scholar
Klima, R. & Petržílka, V. A. 1972 Cz. J. Phys. B22, 896.CrossRefGoogle Scholar
Kruer, W. L. 1986, in Laser-Plasma Interactions III, edited by Hooper, M. B., SUSSP Publications, Edinburgh, 79.Google Scholar
Nicholas, D. J. & Sajjadi, S. G. 1986 J. Phys. D 19, 737.CrossRefGoogle Scholar
Mironov, V. A. et al. 1987 Eighteenth European Conference on Laser Interaction with Matter, Prague, Czechoslovakia, May 4–8 (paper P–l–14).Google Scholar
Perkins, F. W. & Valeo, E. J. 1974 Phys. Rev. Lett. 32, 1234.CrossRefGoogle Scholar
Sodha, M. S. et al. 1976 Prog. Opt. 13, 169.CrossRefGoogle Scholar
Willy, O. et al. 1981 IEEE J. Quantum Electronics, QE-17, 1909.CrossRefGoogle Scholar