Chinese Optics Letters, 2010, 8 (2): 244, Published Online: Mar. 5, 2010
The role of refocusing in dynamic X-wave formation during femtosecond laser filamentation in water Download: 983次
飞秒成丝 脉冲传播 X波 320.0320 Ultrafast optics 190.5530 Pulse propagation and temporal solitons 070.4790 Spectrum analysis
Abstract
With the evolution of a laser pulse in water, the formation of a nonlinear X wave during femtosecond filamentation is investigated based on numerical simulations. In particular, we analyze the far-field angularly resolved spectra obtained for different temporal portions of the ultrashort pulse during its propagation. Our result shows that the refocusing of ultrashort pulse leads to the formation of dynamic X wave which essentially manifests itself as conical emission.
Junjie Xu, Han Xu, Hui Xiong, Ya Cheng, Zhizhan Xu, Weiwei Liu, See Leang Chin. The role of refocusing in dynamic X-wave formation during femtosecond laser filamentation in water[J]. Chinese Optics Letters, 2010, 8(2): 244.