Polarization effect on the Raman backscattering of an electromagnetic wave propagating through an electron-positron-ion magnetoplasma

The present study is devoted to the investigation of stimulated Raman backscattering of an intense, circularly polarized electromagnetic wave in magnetized electron-positron-ion plasma. The nonlinear dispersion relation as well as the growth rate of instability is achieved. The effects of external m...

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Bibliographic Details
Published inPhysica scripta Vol. 88; no. 6; pp. 65502 - 6
Main Authors Javan, N Sepehri, Maraghechi, B, Siahmazgi, R Nemati
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2013
Subjects
Admixtures
Backscattering
Dispersions
Electromagnetic waves
Magnetic fields
Plasma (physics)
Polarization
Wave propagation
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Summary:The present study is devoted to the investigation of stimulated Raman backscattering of an intense, circularly polarized electromagnetic wave in magnetized electron-positron-ion plasma. The nonlinear dispersion relation as well as the growth rate of instability is achieved. The effects of external magnetic field, fraction of electron-positron pairs, pump frequency and also the kind of polarization on the growth rate is studied. It is shown that an admixture of e-p pairs to the ion-electron plasma modifies the behavior of plasma with respect to the external magnetic field.
Bibliography:PHYSSCR-100038.R1
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ISSN:0031-8949
1402-4896
DOI:10.1088/0031-8949/88/06/065502