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Oscillating two-stream instabifity of upper-hybrid laser radiation in a plasma

Published online by Cambridge University Press:  13 March 2009

R. R. Sharma
R. R. Sharma
Affiliation:
Physics Department, Indian Institute of Technology, New Delhi-110029, India
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Abstract

In the vicinity of a turning point, a high-power laser radiation (in the upper- hybrid mode) is unstable for short wavelength, purely growing perturbations, viz, oscillating two-stream instability. The nonlinearity in the low-frequency response arises through the parallel pondermotive force whereas in the high- frequency response it arises through the equation of continuity. In the limits of long and short perpendicular wavelengths, κ┴ρe< 1 and κ┴ρe > 1, the growth rates are found to be γ∞ │κ┴.V0┴│2, where ρe and V0┴ are the electron Larmor radius and oscillatory drift velocity.

Type
Research Article
Information
Journal of Plasma Physics , Volume 23 , Issue 3 , June 1980 , pp. 515 - 520
Copyright
Copyright © Cambridge University Press 1980

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References

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