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Title: Third harmonic stimulated Raman backscattering of laser in a magnetized plasma

This article studies the nonlinear Raman shifted third harmonic backscattering of an intense extraordinary laser wave through a homogenous transversely magnetized cold plasma. Due to the relativistic nonlinearity, the plasma dynamic is modified in the presence of transversely magnetic field, and this can generate the third harmonic scattered wave and an electrostatic upper hybrid wave via the Raman scattering process. Using the nonlinear wave equation, the mechanism of nonlinear third harmonic Raman scattering is discussed in detail to obtain the maximum growth rate of instability in the mildly relativistic regime. The growth rate decreases as the static magnetic field increases. It also increases with the pump wave amplitude.
Authors:
 [1] ;  [2]
  1. Physics Department, Shabestar Branch, Islamic Azad University, Shabestar (Iran, Islamic Republic of)
  2. Laser Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22220575
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLITUDES; BACKSCATTERING; COLD PLASMA; HARMONIC GENERATION; LASERS; MAGNETIC FIELDS; NONLINEAR PROBLEMS; PARAMETRIC INSTABILITIES; PLASMA WAVES; RAMAN EFFECT; RELATIVISTIC PLASMA; RELATIVISTIC RANGE; WAVE EQUATIONS