Modulation instability of an intense laser beam in the hot magnetized electron-positron plasma in the quasi-neutral limit

Journal Article · Sat Dec 15 04:00:00 EST 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4771596· OSTI ID:22072607

Sepehri Javan, N ^[1]

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1. Department of Physics, Faculty of Sciences, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil 56199-11367 (Iran, Islamic Republic of)

The aim of the present study is to investigate the problem of modulation instability of an intense laser beam in the hot magnetized electron-positron plasma. Propagation of the intense circularly polarized laser beam along the external magnetic field is studied using a relativistic fluid model. A nonlinear equation describing the interaction of the laser pulse with the magnetized hot pair plasma is derived based on the quasi-neutral approximation, which is valid for the hot plasma. Also, the nonlinear dispersion equation for the hot plasma is obtained. The growth rate of the instability is calculated and its dependence on temperature and external magnetic field are considered.

• OSTI ID: 22072607
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 12 Vol. 19; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM-PLASMA SYSTEMS
DIFFERENTIAL EQUATIONS
DISPERSIONS
ELECTRON-POSITRON COLLISIONS
FLOW MODELS
HOT PLASMA
LASERS
MAGNETIC FIELDS
NONLINEAR PROBLEMS
PHOTON BEAMS
PLASMA INSTABILITY
RELATIVISTIC RANGE
TEMPERATURE DEPENDENCE