中国物理B ›› 2011, Vol. 20 ›› Issue (9): 95204-095204.doi: 10.1088/1674-1056/20/9/095204
蔡泽彬1, 夏雄平2, 易林2
Xia Xiong-Ping(夏雄平)a), Cai Ze-Bin(蔡泽彬) b), and Yi Lin(易林)a)†
摘要: 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.
中图分类号: (Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))