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Proceedings Paper

Spatiotemporal analysis of plasma mirrors for high-contrast ultra-intense laser pulses
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Paper Abstract

Plasma mirror is an effective approach to improve the temporal contrast of high power ultra-short laser system, while it might deteriorate the focal spot, which is reported in some experiments using plasma mirror. In order to investigate such far-field degradation by plasma mirror, we established a spatiotemporal multi-step focusing propagation algorithm based on the formula of plasma expansion and wave-front modulation model. The influence of plasma expansion time, amplitude and spatial frequency of wave-front error on focal spot degradation are quantitatively analyzed. The simulation results reveal that the far-field focal spot degradation by plasma mirror is caused by the non-uniform plasma expansion due to the wave-front error and the wave-front error with higher amplitude and lower spatial frequency has relatively greater effect on the focusing ability. From the perspective of high-contrast ultra-intense output capability, the requirement on the spatiotemporal quality of the pulse is put forward to avoid the far-field focal spot degradation when using plasma mirror in high power ultra-short laser system.

Paper Details

Date Published: 26 April 2019
PDF: 8 pages
Proc. SPIE 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies, 110340D (26 April 2019); doi: 10.1117/12.2521014
Show Author Affiliations
Dongjun Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of the Chinese Academy of Sciences (China)
Ping Zhu, Shanghai Institute of Optics and Fine Mechanics (China)
Xinglong Xie, Shanghai Institute of Optics and Fine Mechanics (China)
Jianqiang Zhu, Shanghai Institute of Optics and Fine Mechanics (China)
Haidong Zhu, Shanghai Institute of Optics and Fine Mechanics (China)
Jun Kang, Shanghai Institute of Optics and Fine Mechanics (China)
Qingwei Yang, Shanghai Institute of Optics and Fine Mechanics (China)
Ailin Guo, Shanghai Institute of Optics and Fine Mechanics (China)
Meizhi Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Qi Gao, Shanghai Institute of Optics and Fine Mechanics (China)
Ziruo Cui, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Xiao Liang, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Shunhua Yang, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 11034:
Short-pulse High-energy Lasers and Ultrafast Optical Technologies
Pavel Bakule; Constantin L. Haefner, Editor(s)

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