Dispersion Caused by the Penetration Effect in X-ray Compressors

Yang，Chuan1,2; Hu，Kai1,3; Zhu，Ye1; Wang，Xiaofan1; Li，Qinming1; Xu，Zhongmin1; Wu，Juhao4; Zhang，Weiqing1,5

2023-05-01

10.3390/photonics10050484

Photonics   影响因子和分区

2304-6732

Chirped X-ray pulse compression is a promising approach for generating ultra-short X-ray free electron laser (XFEL) pulses. The design of X-ray pulse compressors requires the careful control of group delay dispersion (GDD), which plays a critical role in achieving optimal compression. However, the penetration dispersion of crystals and multilayers can induce an extra GDD, which may result in over-compression or under-compression. In this study, we investigate the penetration dispersion of crystals and multilayers theoretically and numerically. Our results indicate that the extra GDD induced by the penetration effect increases as the bandwidth of the rocking curve decreases. Moreover, the extra GDD is nonlinear and can be mitigated by optimizing the configuration of X-ray pulse compressors. This work provides insights into the dispersion compensation and configuration optimization of X-ray pulse compressors, which are essential for generating ultra-short XFEL pulses.

chirped pulse compression dispersion free electron laser X-ray optics

SCI

英语

通讯

National Natural Science Foundation of China[12005135];National Natural Science Foundation of China[22288201];

Optics

Optics

WOS:001017669300001

MDPI

2-s2.0-85160562280

Scopus

1.Institute of Advanced Science Facilities,Shenzhen,518107,China
2.College of Science,Southern University of Science and Technology,Shenzhen,518055,China
3.National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei,230029,China
4.SLAC National Accelerator Laboratory,Menlo Park,94025,United States
5.State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023,China

Yang，Chuan,Hu，Kai,Zhu，Ye,et al. Dispersion Caused by the Penetration Effect in X-ray Compressors[J]. Photonics,2023,10(5).

Yang，Chuan.,Hu，Kai.,Zhu，Ye.,Wang，Xiaofan.,Li，Qinming.,...&Zhang，Weiqing.(2023).Dispersion Caused by the Penetration Effect in X-ray Compressors.Photonics,10(5).

Yang，Chuan,et al."Dispersion Caused by the Penetration Effect in X-ray Compressors".Photonics 10.5(2023).