Optimization of multiple filamentation of femtosecond laser pulses in air using a pinhole

被引：40
作者：
Hao, Zuo-Qiang
Zhang, Jie [1 ]
Xi, Ting-Ting
Yuan, Xiao-Hui
Zheng, Zhi-Yuan
Lu, Xin
Yu, Ming-Young
Li, Yu-Tong
Wang, Zhao-Hua
Zhao, Wei
Wei, Zhi-Yi
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
[2] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China
[3] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt Technol, Xian 710068, Peoples R China
[4] Ruhr Univ Bochum, D-44780 Bochum, Germany
来源：
OPTICS EXPRESS | 2007年 / 15卷 / 24期
关键词：
D O I：
10.1364/OE.15.016102
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The robustness and prolongation of multiple filamentation (MF) for femtosecond laser propagation in air are investigated experimentally and numerically. It is shown that the number, pattern, propagation distance, and spatial stability of MF can be controlled by a variable-aperture on-axis pinhole. The random MF pattern can be optimized to a deterministic pattern. In our numerical simulations, we configured double filaments to principlly simulate the experimental MF interactions. It is experimentally and numerically demonstrated that the pinhole can reduce the modulational instability of MF and is favorable for a more stable MF evolution. (c) 2007 Optical Society of America.
引用
收藏
页码：16102 / 16109
页数：8
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