Effects of electron temperature on dielectric function and localization of laser beams in underdense collisional plasma

doi:10.1088/1674-1056/20/9/095204

Abstract Effects of electron temperature on dielectric function and localization of laser beams in underdense collisional plasmas are investigated. Simulation results show that the electron temperature has a strong effect on the dielectric constant and the laser beam localization. It is observed that due to the influence of the electron temperature, the dielectric function presents some interesting and complicated nonlinear variations, and gives rise to the laser beam localization. Moreover, the amplitudes of the beam width and the beam intensity are subjected to continuously oscillatory variation in the region of localization. In addition, the effects of several parameters on the dielectric function and the beam localization are discussed.

Keywords: underdense collisional plasmas electron temperature dielectric function laser beam localization

Received: 27 October 2010
Revised: 19 April 2011
Accepted manuscript online:

PACS:	52.35.Mw	(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
	42.65.Jx	(Beam trapping, self-focusing and defocusing; self-phase modulation)
	52.25.Mq	(Dielectric properties)

Cite this article:

Xia Xiong-Ping(夏雄平), Cai Ze-Bin(蔡泽彬), and Yi Lin(易林) Effects of electron temperature on dielectric function and localization of laser beams in underdense collisional plasma 2011 Chin. Phys. B 20 095204

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Effects of electron temperature on dielectric function and localization of laser beams in underdense collisional plasma

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