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Anisotropic self-defocusing of a Trivelpiece-Gould mode in a plasma

Published online by Cambridge University Press:  13 March 2009

A. K. Sharma  and
S. Konar
A. K. Sharma
Affiliation:
Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
S. Konar
Affiliation:
School of Physics, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore 452001, India
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Abstract

The paper presents a paraxial-ray theory of self-defocusing of obliquely propagating Trivelpiece-Gould (TG) modes in a homogeneous plasma. The TG mode with Gaussian distribution of intensity, in a direction perpendicular to its phase velocity, creates a ponderomotive force on electrons. The electrons are redistributed through ambipolar diffusion. The redistributed electrons are responsible for defocusing of the TG mode. The importance of our study is pointed out.

Type
Research Article
Information
Journal of Plasma Physics , Volume 52 , Issue 2 , October 1994 , pp. 189 - 193
Copyright
Copyright © Cambridge University Press 1994

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References

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