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Millimetre-wave second-harmonic generation in an underdense magnetoplasma with a density ripple

Published online by Cambridge University Press:  01 November 1999

J. PARASHAR  and
R. BHARUTHRAM
J. PARASHAR
Affiliation:
Department of Physics, University of Durban–Westville, Private Bag X 54001, Durban 4000, South Africa Permanent address: Department of Physics, Samrat Ashok Technological Institute, Vidisha (M.P.) 464 001, India.
R. BHARUTHRAM
Affiliation:
Department of Physics, University of Durban–Westville, Private Bag X 54001, Durban 4000, South Africa
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Abstract

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A high-power millimetre wave (ω1, k1) propagating through a magnetized plasma at an angle to a density ripple (0, k0) produces density perturbations (ω1, k1, k0). The density perturbations couple with the oscillatory velocity at (ω1, k1) to produce a nonlinear current at (2ω1, 2k1+k0) driving second-harmonic electromagnetic radiation. The efficiency of the process is sensitive to the angle between the density ripple and the millimetre wave.

Type
Research Article
Information
Journal of Plasma Physics , Volume 62 , Issue 5 , November 1999 , pp. 485 - 491
Copyright
1999 Cambridge University Press