Matching-based two-color X-ray free-electron laser generation utilizing laser-plasma accelerated electron beam

被引：3
|
作者：
Liu, Tao [1 ]
Zhang, Kaiqing [1 ]
Qi, Zheng [1 ]
Chen, Si [1 ]
Feng, Chao [1 ]
Deng, Haixiao [1 ]
Liu, Bo [1 ]
Wang, Dong [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Adv Res Inst, 239 Zhangheng Rd, Shanghai 201210, Peoples R China
来源：
HIGH POWER LASER SCIENCE AND ENGINEERING | 2021年 / 10卷
基金：
中国国家自然科学基金;
关键词：
free-electron lasers; laser-plasma accelerator; two-color; X-ray; OPERATION;
D O I：
10.1017/hpl.2021.55
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Laser-plasma accelerators (LPAs) have great potential to realize a compact X-ray free-electron laser (FEL), which is limited by the beam properties currently. Two-color high-intensity X-ray FEL provides a powerful tool for probing ultrafast dynamic systems. In this paper, we present a simple and feasible method to generate a two-color X-ray FEL pulse based on an LPA beam. In this scheme, time-dependent mismatch along the bunch is generated and manipulated by the designed lattice system, enabling FEL lasing at different wavelength within two undulator sections. The time separation between the two pulses can be precisely adjusted by varying the time-delay chicane. Numerical simulations show that two-color soft X-ray FELs with gigawatt-level peak power and femtosecond duration can be generated, which confirm the validity and feasibility of the scheme.
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收藏
页数：9
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