Supercontinuum Induced by Filamentation of Bessel-Gaussian and Laguerre-Gaussian Beams in Water

被引：4
作者：
Wu, Jiabin [1 ]
Huo, Li [1 ,2 ]
Ni, Yingxue [1 ]
Wu, Zhiyong [1 ]
Chen, Tao [1 ]
Gao, Shijie [1 ]
Li, Suyu [3 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 12期
关键词：
Bessel-Gaussian beams; Laguerre-Gaussian beams; vortex beam; filamentation; supercontinuum; ORBITAL ANGULAR-MOMENTUM; INDUCED ROTATION; LASER-PULSES; VORTEX BEAMS; GENERATION; PARTICLES; LIGHT; ABSORPTION;
D O I：
10.3390/app12126005
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this paper, we study the characteristics of the supercontinuum (SC) induced by the filamentation of two typical vortex beams (i.e., Laguerre-Gaussian (LG) and Bessel-Gaussian (BG) beams) in water. By moving the cuvette filled with water along the laser propagation path, we measure the SC induced by the filamentation of the two vortex beams at different positions in water. The results show that the degree of spectral broadening induced by the filamentation of LG beams hardly changes with the change of position, while for BG beams, the spectral broadening induced by filamentation is weak on both sides and strong in the middle. The value of topological charge (TC) affects the length of the filament formed by BG beams; however, its effect on the spectral broadening induced by the filamentation of LG and BG beams is negligible.
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收藏
页数：11
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