Study on Dynamic Measurement of Femtosecond Filaments Based on Time-Stretch Technology

被引：1
|
作者：
Wang Xiaoyue [1 ,2 ]
Wang Zijian [1 ]
Peng Bo [1 ]
Huang Kun [1 ]
Yan Ming [1 ,2 ]
Liu Weiwei [3 ]
Zeng Heping [1 ,2 ]
机构：
[1] East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
[2] East China Normal Univ, Chongqing Key Lab Precis Opt, Chongqing Inst, Chongqing 401147, Peoples R China
[3] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
来源：
LASER & OPTOELECTRONICS PROGRESS | 2022年 / 59卷 / 13期
关键词：
ultrafast optics; filamentation; imaging; Fourier transforms; femtosecond laser; GENERATION; BUILDUP;
D O I：
10.3788/LOP202259.1336001
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, the time-stretch dispersive Fourier transform is applied to imaging femtosecond laser induced filaments. One-dimensional imaging of the transient evolution of a filament is realized by using spectral-spatial coding method combined with a fast photo-detector and an oscilloscope. The spatial resolution is 60 mu m and the refresh rate reaches 54. 54 MHz. The proposed method avoids the limitation of refresh rate caused by CCD and provides a new method for studying the dynamics of the filament-matter interaction.
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页数：4
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