Nonlinear Dynamics of Circularly Polarized Laser Pulse Propagating in a Magnetized Plasma with q ‐Nonextensive Velocity Distributions. Issue 10 (9th August 2016)

• Record Type: Journal Article
• Authors: Etemadpour, R.; Sepehri Javan, N.; Dorranian, D.
• Is Part Of: Contributions to plasma physics. Volume 56:Issue 10(2016)
• Page Start: 938
• Page End: 950
• Publication Date: 2016-08-09
• Subjects: Electromagnetic soliton -- nonextensive -- modulation instability -- self focusing; Plasma (Ionized gases) -- Periodicals; Electronic journals; 530.44
• DOI: 10.1002/ctpp.201600010
• Languages: English
• ISSNs: 0863-1042

Abstract

Abstract: The nonlinear dynamics of a circularly polarized laser pulse propagating in magnetized plasma contains hot nonextensive q ‐distributed electrons and ions is studied theoretically. A nonlinear equation which describes the dynamics of the slowly varying amplitude electromagnetic wave is obtained using the relativistic two‐fluids model. Some nonlinear phenomena include modulational instability, self‐focusing, soliton formation, and longitudinal and transversal evolutions of laser pulse in nonextensive plasma medium are investigated. Results show that the nonextensivity of particles can substantially change the nonlinearity of medium. The external magnetic field enhances the modulation instability growth rate of right‐hand polarization wave but for the left‐hand polarization the growth rate decreases. The spot size of the laser pulse is strongly affected by the plasma nonextensivity. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)