Third harmonic stimulated Raman backscattering of laser in a magnetized plasma

Journal Article · Sun Sep 15 04:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4821033· OSTI ID:22220575

Paknezhad, Alireza ^[1]; Dorranian, Davoud ^[2]

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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)

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.

• OSTI ID: 22220575
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 20; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

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