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Self-focusing of a laser pulse in a transient plasma

Published online by Cambridge University Press:  13 March 2009

M. S. Sodha ,
D. P. Tewari  and
L. A. Patel
M. S. Sodha
Affiliation:
Department of Physics, Indian Institute of Technology, New Delhi-110029, India
D. P. Tewari
Affiliation:
Department of Physics, Indian Institute of Technology, New Delhi-110029, India
L. A. Patel
Affiliation:
Department of Physics, Indian Institute of Technology, New Delhi-110029, India
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Abstract

Following Akhmanov's approach, self-focusing of a laser pulse in a transient plasma has been studied. The beamwidth parameter and hence the laser intensity and the frequency shift (time derivative of the phase) have been evaluated as a function of time and the distance of propagation. It is seen that the time dependence of the axial intensity changes appreciably as the pulse propagates. The present investigation is restricted to a pulse whose incident intensity has Gaussian radial dependence.

Type
Research Article
Information
Journal of Plasma Physics , Volume 19 , Issue 2 , April 1978 , pp. 301 - 312
Copyright
Copyright © Cambridge University Press 1978

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References

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