The nonlinear propagation of terahertz wave in plasmas
The nonlinear propagation of a terahertz wave with Gaussian beam in plasma has been investigated in this paper.The nonlinearities of pondermotive force on electron and the relativistic oscillation of the electron mass are used to study the effects on the propagation of terahertz wave in plasmas.In the present theoretical investigation,the common parabolic equation approach under the paraxial ray theory and WKB method have been adopted.Then the nonlinear differential equation for the beam-width parameter has been established and solved numerically.The numerical results show that the ponderomotive force on electron and the relativistic oscillation of the electron mass cause the periodic self-focusing/defocusing of terahertz wave.Additionally the parameteric effects on the variation of terahertz beam width parameter have been presented graphically and discussed.
Terahertz wave nonlinear propagation plasma relativistic and ponderomotive self-focusing
Jinyue Fan Ying Wang Chengxun Yuan Jingfeng Yao Zhongxiang Zhou Xiaoou Wang Hailu Wang Zebin Li
Department of Physics Harbin Institute of Technology Herbin,China Luoyang Institute of Hydraulic Engineering Technology Luoyang 471023 China
国际会议
杭州
英文
1-5
2018-12-03（万方平台首次上网日期，不代表论文的发表时间）