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Linear conversion theory on the second harmonic emission from a plasma filament

Published online by Cambridge University Press:  09 March 2009

Tan Weihan and
Gu Min
Tan Weihan
Affiliation:
Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai, P.R.C..
Gu Min
Affiliation:
Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai, P.R.C..
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Abstract

The linear conversion theory of laser produced plasma filaments is studied in this paper. By calculations for the energy flux of the second harmonic emission on the basis of the planar wave-plasma interaction model, it has been found that there exists no 2ω0 harmonic emission in the direction perpendicular to the incident laser, in contradiction with the experiments. Therefore, we have proposed a linear conversion theory on the second harmonic emission from a plasma filament and discovered the intense 2ω0 harmonic emission in the direction perpendicular to the incident laser, which is in agreement with the experiments.

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Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 1 , February 1989, pp. 131 - 138
Copyright
Copyright © Cambridge University Press 1989

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