Competition of circularly polarized laser modes in the modulation instability of hot magnetoplasma

The present study is aimed to investigate the problem of modulation instability of an intense laser beam in the hot magnetized plasma. The propagation of intense circularly polarized laser beam along the external magnetic field is considered using a relativistic fluid model. The nonlinear equation d...

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Published in:Physics of plasmas 2013-01, Vol.20 (1)
Main Author: Sepehri Javan, N.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
BEAMS
DISPERSION RELATIONS
DISPERSIONS
EQUATIONS
HOT PLASMA
Instability
INTERACTIONS
LASER RADIATION
LIGHT TRANSMISSION
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
Mathematical analysis
Mathematical models
Modulation
PLASMA INSTABILITY
Plasmas
POLARIZATION
PULSES
RELATIVISTIC RANGE
Stability
WAVE PROPAGATION
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description The present study is aimed to investigate the problem of modulation instability of an intense laser beam in the hot magnetized plasma. The propagation of intense circularly polarized laser beam along the external magnetic field is considered using a relativistic fluid model. The nonlinear equation describing the interaction of laser pulse with magnetized hot plasma is derived in the quasi-neutral approximation, which is valid for hot plasma. Nonlinear dispersion equation for hot plasma is obtained. For left- and right-hand polarizations, the growth rate of instability is achieved and the effect of temperature, external magnetic field, and kind of polarization on the growth rate is considered. It is observed that for the right-hand polarization, increase of magnetic field leads to the increasing of growth rate. Also for the left-hand polarization, increase of magnetic field inversely causes decrease of the growth rate.
doi_str_mv 10.1063/1.4789452
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); AIP Journals (American Institute of Physics)
subjects 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
BEAMS
DISPERSION RELATIONS
DISPERSIONS
EQUATIONS
HOT PLASMA
Instability
INTERACTIONS
LASER RADIATION
LIGHT TRANSMISSION
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
Mathematical analysis
Mathematical models
Modulation
PLASMA INSTABILITY
Plasmas
POLARIZATION
PULSES
RELATIVISTIC RANGE
Stability
WAVE PROPAGATION
title Competition of circularly polarized laser modes in the modulation instability of hot magnetoplasma
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