Chinese Optics Letters, 2018, 16 (1): 013201, Published Online: Jul. 17, 2018   

Characterization and application of plasma mirror for ultra-intense femtosecond lasers Download: 892次

Author Affiliations
1 State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
2 Key Laboratory for Laser Plasmas (MoE) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
3 Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
Abstract
The femtosecond laser pulses reflected from the self-induced plasma mirror (PM) surface are characterized. More than two orders of magnitude improvement on intensity contrast both in nanosecond and picosecond temporal scales are measured. The far-field distribution, i.e., focusability, is measured to degrade in comparison with that without using a PM. Experiments on proton accelerations are performed to test the effect of the balance between degraded focusability and increased reflectivity. Our results show that PM is an effective and robust device to improve laser contrast for applications.

Xulei Ge, Yuan Fang, Su Yang, Wenqing Wei, Feng Liu, Peng Yuan, Jingui Ma, Li Zhao, Xiaohui Yuan, Jie Zhang. Characterization and application of plasma mirror for ultra-intense femtosecond lasers[J]. Chinese Optics Letters, 2018, 16(1): 013201.

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