Ping Zhu, Xinglong Xie, Jun Kang, Qingwei Yang, Haidong Zhu, Ailin Guo, Meizhi Sun, Qi Gao, Ziruo Cui, Xiao Liang, Shunhua Yang, Dongjun Zhang, Jianqiang Zhu. Systematic study of spatiotemporal influences on temporal contrast in the focal region in large-aperture broadband ultrashort petawatt lasers[J]. High Power Laser Science and Engineering, 2018, 6(1): 010000e8
- High Power Laser Science and Engineering
- Vol. 6, Issue 1, 010000e8 (2018)
Fig. 1. Schematic of the SG-II 5 PW ultrashort pulse laser system.
Fig. 2. Schematic of an SF.
Fig. 3. Wave front defocus dispersion after the multiple-stage spatial filters.
Fig. 4. PTD of the multiple-stage spatial filters.
Fig. 5. (a) Schematic of a grating pair; (b) residual dispersion due to compression distortion at various spatial places.
Fig. 6. (a) Spectral information of input pulse; (b) pulses at different spatial positions after compression; (c) spatial distribution of temporal contrast.
Fig. 7. (a) Pulse shapes in the focal region; (b) temporal contrast in the focal region.
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Table 1. Design of multiple-stage spatial filters in SG-II 5 PW system (unit: mm).
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