The formation of an intense filament controlled by interference of ultraviolet femtosecond pulses

被引：13
|
作者：
Wang, Yongdong [1 ]
Zhang, Yisan [1 ]
Chen, Peng [1 ]
Shi, Liping [1 ]
Lu, Xin [1 ]
Wu, Jian [1 ]
Ding, Liang'en [1 ]
Zeng, Heping [1 ]
机构：
[1] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 11期
关键词：
D O I：
10.1063/1.3565158
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We experimentally investigated the formation of a wavelength-scale photonic plasma grating induced by interference-assisted coalescence of two noncollinear ultraviolet femtosecond laser pulses. The period of the created plasma grating decreased with the crossing angle of the interacting laser pulses. For a proper small crossing angle, the noncollinear ultraviolet filaments were coalesced and an intense single ultraviolet filament was formed with a diameter of 5 mu m which was below the focused limitation. This may provide a way to control ultraviolet femtosecond filamentation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3565158]
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页数：3
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