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Title: Nonlinear Raman forward scattering driven by a short laser pulse in a collisional transversely magnetized plasma with nonextensive distribution

Abstract

Nonlinear Raman forward scattering of an intense short laser pulse with a duration shorter than the plasma period propagating through a homogenous collisional nonextensive distributed plasma in the presence of a uniform magnetic field perpendicular to both the direction of propagation and electric vector of the radiation field is investigated theoretically when ponderomotive, relativistic, and collisional nonlinearities are taken into account. The governing equations for nonlinear wave in the context of nonextensive statistics are given, the nonextensive coupled equations describing the nonlinear Raman forward scattering instability are solved by the Fourier transformation method, and the growth rate of the nonlinear Raman forward scattering instability is obtained. The results in the case q → 1 are consistent with those in the framework of the Maxwellian distribution. It is found that the instability growth rate first decreases on increasing electron thermal velocity, minimizes at a critical thermal velocity, and then increases steeply; the critical temperature dependents on the nonextensive parameter, and the greater nonextensive parameter, correspond to the greater critical temperature; when the thermal velocity of electron is less than the critical speed, the instability growth rate is found to be enhanced as the nonextensive parameter increases; but when the thermal velocitymore » is greater than the critical speed, the instability growth rate decreases on increasing the nonextensive parameter.« less

Authors:
; ;  [1]
  1. Strong-field and Ultrafast Photonics Laboratory, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124 (China)
Publication Date:
OSTI Identifier:
22490145
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOLTZMANN STATISTICS; CRITICAL TEMPERATURE; ELECTRONS; FOURIER TRANSFORMATION; INSTABILITY GROWTH RATES; LASERS; MAGNETIC FIELDS; NONLINEAR PROBLEMS; PLASMA; PONDEROMOTIVE FORCE; PULSES; RAMAN EFFECT; RELATIVISTIC RANGE; SCATTERING; STATISTICS; VELOCITY

Citation Formats

Qiu, Hui-Bin, Song, Hai-Ying, and Liu, Shi-Bing. Nonlinear Raman forward scattering driven by a short laser pulse in a collisional transversely magnetized plasma with nonextensive distribution. United States: N. p., 2015. Web. doi:10.1063/1.4931747.
Qiu, Hui-Bin, Song, Hai-Ying, & Liu, Shi-Bing. Nonlinear Raman forward scattering driven by a short laser pulse in a collisional transversely magnetized plasma with nonextensive distribution. United States. https://doi.org/10.1063/1.4931747
Qiu, Hui-Bin, Song, Hai-Ying, and Liu, Shi-Bing. 2015. "Nonlinear Raman forward scattering driven by a short laser pulse in a collisional transversely magnetized plasma with nonextensive distribution". United States. https://doi.org/10.1063/1.4931747.
@article{osti_22490145,
title = {Nonlinear Raman forward scattering driven by a short laser pulse in a collisional transversely magnetized plasma with nonextensive distribution},
author = {Qiu, Hui-Bin and Song, Hai-Ying and Liu, Shi-Bing},
abstractNote = {Nonlinear Raman forward scattering of an intense short laser pulse with a duration shorter than the plasma period propagating through a homogenous collisional nonextensive distributed plasma in the presence of a uniform magnetic field perpendicular to both the direction of propagation and electric vector of the radiation field is investigated theoretically when ponderomotive, relativistic, and collisional nonlinearities are taken into account. The governing equations for nonlinear wave in the context of nonextensive statistics are given, the nonextensive coupled equations describing the nonlinear Raman forward scattering instability are solved by the Fourier transformation method, and the growth rate of the nonlinear Raman forward scattering instability is obtained. The results in the case q → 1 are consistent with those in the framework of the Maxwellian distribution. It is found that the instability growth rate first decreases on increasing electron thermal velocity, minimizes at a critical thermal velocity, and then increases steeply; the critical temperature dependents on the nonextensive parameter, and the greater nonextensive parameter, correspond to the greater critical temperature; when the thermal velocity of electron is less than the critical speed, the instability growth rate is found to be enhanced as the nonextensive parameter increases; but when the thermal velocity is greater than the critical speed, the instability growth rate decreases on increasing the nonextensive parameter.},
doi = {10.1063/1.4931747},
url = {https://www.osti.gov/biblio/22490145}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 9,
volume = 22,
place = {United States},
year = {Tue Sep 15 00:00:00 EDT 2015},
month = {Tue Sep 15 00:00:00 EDT 2015}
}