Laser & Optoelectronics Progress, Volume. 59, Issue 13, 1336001(2022)
Study on Dynamic Measurement of Femtosecond Filaments Based on Time-Stretch Technology
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 μm 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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Xiaoyue Wang, Zijian Wang, Bo Peng, Kun Huang, Ming Yan, Weiwei Liu, Heping Zeng. Study on Dynamic Measurement of Femtosecond Filaments Based on Time-Stretch Technology[J]. Laser & Optoelectronics Progress, 2022, 59(13): 1336001
Category: Letters
Received: Feb. 21, 2022
Accepted: Feb. 25, 2022
Published Online: Jul. 1, 2022
The Author Email: Yan Ming (myan@lps.ecnu.edu.cn)