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Title: Parametric up-conversion of an electron Bernstein mode by a relativistic electron beam in a plasma

Abstract

A relativistic electron beam, propagating with velocity v{sub 0b} parallel z in a magnetized plasma, parametrically up-converts a pre-existing electron Bernstein wave ({omega}{sub 0},k{sub 0}) into electromagnetic radiation when k{sub 0}{center_dot}v{sub 0b}<0. The Bernstein wave couples with a negative energy space-charge mode ({omega},k) to produce a frequency up-converted sideband electromagnetic wave. The sideband and the Bernstein wave exert a ponderomotive force, driving space-charge mode. In the Compton regime, the growth rate of the parametric instability scales as two-third power of the pump amplitude, whereas in the Raman regime, it goes linearly.

Authors:
;  [1]
  1. Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016 (India)
Publication Date:
OSTI Identifier:
20974980
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 5; Other Information: DOI: 10.1063/1.2736368; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; BEAM-PLASMA SYSTEMS; BERNSTEIN MODE; ELECTROMAGNETIC RADIATION; ELECTRON BEAMS; ELECTRONS; NONLINEAR PROBLEMS; PARAMETRIC INSTABILITIES; PLASMA; PLASMA WAVES; PONDEROMOTIVE FORCE; RELATIVISTIC RANGE; SPACE CHARGE

Citation Formats

Kumar, Asheel, and Tripathi, V. K.. Parametric up-conversion of an electron Bernstein mode by a relativistic electron beam in a plasma. United States: N. p., 2007. Web. doi:10.1063/1.2736368.
Kumar, Asheel, & Tripathi, V. K.. Parametric up-conversion of an electron Bernstein mode by a relativistic electron beam in a plasma. United States. doi:10.1063/1.2736368.
Kumar, Asheel, and Tripathi, V. K.. Tue . "Parametric up-conversion of an electron Bernstein mode by a relativistic electron beam in a plasma". United States. doi:10.1063/1.2736368.
@article{osti_20974980,
title = {Parametric up-conversion of an electron Bernstein mode by a relativistic electron beam in a plasma},
author = {Kumar, Asheel and Tripathi, V. K.},
abstractNote = {A relativistic electron beam, propagating with velocity v{sub 0b} parallel z in a magnetized plasma, parametrically up-converts a pre-existing electron Bernstein wave ({omega}{sub 0},k{sub 0}) into electromagnetic radiation when k{sub 0}{center_dot}v{sub 0b}<0. The Bernstein wave couples with a negative energy space-charge mode ({omega},k) to produce a frequency up-converted sideband electromagnetic wave. The sideband and the Bernstein wave exert a ponderomotive force, driving space-charge mode. In the Compton regime, the growth rate of the parametric instability scales as two-third power of the pump amplitude, whereas in the Raman regime, it goes linearly.},
doi = {10.1063/1.2736368},
journal = {Physics of Plasmas},
number = 5,
volume = 14,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}