Pulse repetition-rate effect on the intensity inside a femtosecond laser filament in air

被引：0

作者：

Fukang Yin ^{[1
,2
]}

Juan Long ^{[1
,2
]}

Yaoxiang Liu ^{[1
]}

Yingxia Wei ^{[1
]}

Bin Zhu ^{[3
]}

Kainan Zhou ^{[3
]}

Tie-Jun Wang ^{[1
,2
]}

Yuxin Leng ^{[1
,2
]}

Ruxin Li ^{[1
,2
]}

机构：

[1] State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics and CAS Center for Excellence in Ultra-intense Laser Science, Chinese Academy of Sciences

[2] Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 3. Laser Fusion Research Center and Science & Technology on Plasma Physics Laboratory, China Aca

来源：

High Power Laser Science and Engineering | 2023年 / 11卷 / 04期

关键词：

D O I：

暂无

中图分类号：

TN249 [激光的应用];

学科分类号：

摘要：

As intense, ultrashort, kHz-repetition-rate laser systems become commercially available, pulse cumulative effects are critical for laser filament-based applications. In this work, the pulse repetition-rate effect on femtosecond laser filamentation in air was investigated both numerically and experimentally. The pulse repetition-rate effect has negligible influence at the leading edge of the filament. Clear intensity enhancement from a high-repetition pulse is observed at the peak and tailing edge of the laser filament. As the repetition rate of the laser pulses increases from 100 to 1000 Hz,the length of the filament extends and the intensity inside the filament increases. A physical picture based on the pulse repetition-rate dependent ‘low-density hole’ effect on filamentation is proposed to explain the obtained results well.

引用

页码：21 / 28

页数：8

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