Design of a Hybrid Split-Delay Line for Hard X-ray Free-Electron Lasers

被引：4

作者：

Xu, Yihui ^{[1
,2
]}

Wu, Chen ^{[3
]}

Fan, Jiadong ^{[1
,2
]}

Wang, Zhen ^{[1
,2
]}

Tong, Yajun ^{[1
,2
]}

Huang, Qiushi ^{[4
]}

Yang, Chuan ^{[5
]}

Dong, Xiaohao ^{[2
,6
]}

Jiang, Huaidong ^{[1
,2
]}

Liu, Zhi ^{[1
,2
]}

机构：

[1] ShanghaiTech Univ, Ctr Transformat Sci, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China

[2] Shanghai High Repetit Rate XFEL & Extreme Light F, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China

[3] ShanghaiTech Univ, Sch Phys Sci & Technol, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China

[4] Tongji Univ, Sch Phys Sci & Engn, 1239 Siping Rd, Shanghai 200092, Peoples R China

[5] Inst Adv Sci Facil, 268 Zhengyuan Rd, Shenzheng 518107, Peoples R China

[6] Chinese Acad Sci, Shanghai Adv Res Inst, 99 Haike Rd, Shanghai 201210, Peoples R China

来源：

PHOTONICS | 2022年 / 9卷 / 03期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

XFEL; split-delay line; XPCS; hybrid; wavefront propagation; TEMPORAL COHERENCE; OPTICAL-SYSTEM; PULSES;

D O I：

10.3390/photonics9030136

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High repetition-rate X-ray free-electron lasers (XFELs) enable the study of fast dynamics on microsecond time scales. Split-delay lines (SDLs) further bring the time scale down to femtoseconds by splitting and delaying the XFEL pulses. Crystals and multilayers are two common types of optical elements in SDLs, offering either long delay ranges or high temporal accuracy. In this work, we introduce the design of a hybrid SDL for the coherent diffraction endstation of Shanghai High Repetition Rate XFEL and Extreme Light Facility (SHINE). It uses crystals for the first branch and multilayers for the second one, thus simultaneously offering a relatively long delay range and high temporal accuracy. Moreover, a third branch can be installed to switch the SDL to the all-crystal configuration for longer delay ranges.

引用

页数：8

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