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Collisionless absorption of femtosecond laser pulses in plasmas by nonlinear forces

Published online by Cambridge University Press:  09 March 2009

M. T. Batchelor  and
R. J. Stening
M. T. Batchelor
Affiliation:
Department of Theoretical Physics, University of New South Wales, Kensington 2033, Australia
R. J. Stening
Affiliation:
Department of Theoretical Physics, University of New South Wales, Kensington 2033, Australia
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Abstract

A mechanism has been discussed before by Dragila and Hora where very short laser pulses in a homogeneous plasma can be absorbed without collisions by the action of time dependent nonlinear forces. The resulting absorption lengths are of interest for the study of femtosecond neodymium glass laser pulses or the sub-picosecond carbon dioxide laser pulses which are now available. A mathematically more rigorous treatment of this problem is presented where a nonlinear differential equation is derived for the general solution in the approximation of Klima and Petrzilka. The ordinary differential equation can be solved exactly. With reasonable initial conditions, the solutions are similar to those of Dragila and Hora and are evaluated numerically for cases of experimental interest.

Type
Research Article
Information
Laser and Particle Beams , Volume 3 , Issue 2 , May 1985 , pp. 189 - 196
Copyright
Copyright © Cambridge University Press 1985

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References

Boreham, B. W. & Hora, H. 1979 Phys. Rev. Lett, 42, 776.CrossRefGoogle Scholar
Chen, F. F. 1974 Laser Interaction and Related Plasma Phenomena, H. Schwarz and H. Hora eds, (Plenum, New York), 3A, 291.Google Scholar
Chen, H. H., Grobogi, C. S. & Tripathi, V. K. 1979 Plasma Physics and Controlled Nuclear Fusion Research 1978 (IAEA, Vienna) 3, 181.Google Scholar
Corkum, P. B. 1984 International Quantum Electronics Conference,Anaheim.Google Scholar
Denisov, N. G. 1957 Sov. Phys. JETP, 4, 544.Google Scholar
Dragila, R. & Hora, H. 1982 Phys. Fluids, 25, 1057.Google Scholar
Eliezer, S. & Ludmirsky, A. 1983 Laser and Particle Beams, 1, 251.Google Scholar
Fujimoto, J. C, Weiner, A. M. & Ippen, E. 1984 Appl. Phys. Letters, 44, 833.Google Scholar
Goldsworthy, M. P., Hora, H. & Stening, R. J. 1985 (to be published).Google Scholar
Hora, H. 1969 Phys. Fluids, 12, 182.CrossRefGoogle Scholar
Hora, H. 1976 Austr. J. Phys, 29, 375.CrossRefGoogle Scholar
Hora, H. 1981 Physics of Laser Driven Plasmas (Wiley, New York).Google Scholar
Hora, H. & Ghatak, A. K. 1984 Int. Conf. Plasma Physics, Lausanne Abstracts, 2, 275.Google Scholar
Hora, H., Lalousis, P. & Jones, D. A. 1983 Phys. Lett, 99A, 89.CrossRefGoogle Scholar
Hora, H. & Viera, G. 1984 Laser Interaction and Related Plasma Phenomena, H. Hora and G. H. Miley eds, (Plenum, New York), 6, 201.Google Scholar
Kentwell, G. W. 1983 Ph.D. Thesis, Univ. of New South Wales.Google Scholar
Kentwell, G. W. & Hora, H. 1980 Plasma Physics, 22, 1051.Google Scholar
Klima, R. & Petrzilka, V. A. 1972 Czech. J. Phys. B22, 896.Google Scholar
Klima, R. & Petrzilka, V. A. 1978 J. Phys., All, 1687.Google Scholar
Lalousis, P. & Hora, H. 1983 Laser and Particle Beams, 1, 283.CrossRefGoogle Scholar
Lawrence, V. F. & Hora, H. 1977 Laser Interaction and Related Plasma Phenomena, H. Schwarz et al, eds. (Plenum, New York), 48, 877.Google Scholar