Ray-Tracing Simulation on Filamentation of Prefocused and Freely Propagated Laser Pulses in Air
MA Yuan-Yuan1,2, LU Xin2, XI Ting-Ting2,4, GONG Qi-Huang1, ZHANG Jie1,2,3
1State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 1008712Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001903Department of Physics, Shanghai Jiao Tong University, Shanghai 2002404Department of Physics, Graduate University of Chinese Academyof Sciences, Beijing 100049
Ray-Tracing Simulation on Filamentation of Prefocused and Freely Propagated Laser Pulses in Air
MA Yuan-Yuan1,2, LU Xin2, XI Ting-Ting2,4, GONG Qi-Huang1, ZHANG Jie1,2,3
1State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 1008712Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001903Department of Physics, Shanghai Jiao Tong University, Shanghai 2002404Department of Physics, Graduate University of Chinese Academyof Sciences, Beijing 100049
摘要The filamentation mechanisms of prefocused and freely propagated femtosecond laser pulses are compared using the ray-tracing method. The dynamic spatial replenishment mechanism takes place in the filaments with high electron density, which is generally formed by prefocused laser pulses. The mechanism of long-range filamentation over 100m distance is analyzed to be the spatiotemporal moving focus.
Abstract：The filamentation mechanisms of prefocused and freely propagated femtosecond laser pulses are compared using the ray-tracing method. The dynamic spatial replenishment mechanism takes place in the filaments with high electron density, which is generally formed by prefocused laser pulses. The mechanism of long-range filamentation over 100m distance is analyzed to be the spatiotemporal moving focus.
(Beam trapping, self-focusing and defocusing; self-phase modulation)
引用本文:
MA Yuan-Yuan;LU Xin;XI Ting-Ting;GONG Qi-Huang;ZHANG Jie;. Ray-Tracing Simulation on Filamentation of Prefocused and Freely Propagated Laser Pulses in Air[J]. 中国物理快报, 2009, 26(9): 95201-095201.
MA Yuan-Yuan, LU Xin, XI Ting-Ting, GONG Qi-Huang, ZHANG Jie,. Ray-Tracing Simulation on Filamentation of Prefocused and Freely Propagated Laser Pulses in Air. Chin. Phys. Lett., 2009, 26(9): 95201-095201.
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2009, Vol. 26 
