Intensity modulation of filaments by shaped laser pulses in fused silica

被引：2
|
作者：
Chang, Junwei [1 ]
Zhu, Ruihan [1 ]
Xi, Tingting [2 ]
Xu, Mengning [2 ]
Wang, Di [1 ]
Zhang, Lanzhi [3 ,4 ]
Li, Dongwei [1 ,3 ,4 ]
Hao, Zuoqiang [1 ,3 ,4 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Jilin, Peoples R China
[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[3] Shandong Normal Univ, Shandong Prov Engn & Tech Ctr Light Manipulat, Sch Phys & Elect, Jinan 250014, Shandong, Peoples R China
[4] Shandong Normal Univ, Shandong Prov Key Lab Opt & Photon Device, Sch Phys & Elect, Jinan 250014, Shandong, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2019年 / 17卷 / 12期
基金：
中国国家自然科学基金;
关键词：
FEMTOSECOND; PROPAGATION; GENERATION; GLASS;
D O I：
10.3788/COL201917.123201
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show the intensity control of filamentation in fused silica by temporally shaping the femtosecond laser pulse. The arbitrary control of filamentation intensity has been obtained by the feedback control based on the genetic algorithm, and the peak intensity of filament has changed from about 670 to around 2100 (charge-coupled device counts). This modulation is in qualitative agreement with the simulation results. It is shown that the control of the intensity is realized by modulating the peak power of the shaped pulse.
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页数：5
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