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

Dongjun Zhang; Ping Zhu; Xinglong Xie; Jianqiang Zhu; Haidong Zhu; Jun Kang; Qingwei Yang; Ailin Guo; Meizhi Sun; Qi Gao; Ziruo Cui; Xiao Liang; Shunhua Yang

doi:10.1117/12.2521014

26 April 2019 Spatiotemporal analysis of plasma mirrors for high-contrast ultra-intense laser pulses

Dongjun Zhang, Ping Zhu, Xinglong Xie, Jianqiang Zhu, Haidong Zhu, Jun Kang, Qingwei Yang, Ailin Guo, Meizhi Sun, Qi Gao, Ziruo Cui, Xiao Liang, Shunhua Yang

Author Affiliations +

Proceedings Volume 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies; 110340D (2019) https://doi.org/10.1117/12.2521014
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

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.

Conference Presentation

Citation Download Citation

Dongjun Zhang, Ping Zhu, Xinglong Xie, Jianqiang Zhu, Haidong Zhu, Jun Kang, Qingwei Yang, Ailin Guo, Meizhi Sun, Qi Gao, Ziruo Cui, Xiao Liang, and Shunhua Yang "Spatiotemporal analysis of plasma mirrors for high-contrast ultra-intense laser pulses ", Proc. SPIE 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies, 110340D (26 April 2019); https://doi.org/10.1117/12.2521014

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