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Signal recovery of a Fabry-Pérot interferometric x-ray pulse detector based on the RadOptic effect
Wang, Gang1,2; He, Kai1; Liu, Yiheng1,2; Yan, Xin1; Gao, Guilong1; Wang, Tao1; Yuan, Xiaohui3; Zhao, Xu3; Dong, Yufeng4; Tian, Jinshou1,5
作者部门条纹相机工程中心
2022-02-14
发表期刊Journal of Applied Physics
ISSN00218979;10897550
卷号131期号:6
产权排序1
摘要

The signal recovery of a Fabry-Pérot interferometric x-ray pulse detector based on the RadOptic effect in the non-limiting case was investigated in this research. A Fe-doped InP with an invariant excess carrier recombination mechanism was used as the interference cavity material to achieve a constant temporal instrumental response function (tIRF). A linear and time-invariant detection system described by the convolution of the time-varying x-ray pulse and the constant tIRF was established based on the transient refractive index variation model determined by the three effects of band filling, band shrinkage, and free-carrier absorption. For the non-limiting case, the accumulation of excess carriers enhanced the sensitivity but altered the fluctuations of the real x-ray pulse. To realistically reconstruct the x-ray pulse, two-photon absorption of the infrared ultrashort pulse was used to simulate the ultrashort x-ray excitation to obtain the tIRF. Finally, using the conjugate gradient method, the original signal recorded by the detection system was deconvoluted to recover the signal. The success of signal recovery in the non-limiting case provided the basis for the development of detectors with adjustable sensitivity controlled by carrier lifetime. © 2022 Author(s).

DOI10.1063/5.0073295
收录类别SCI ; EI
语种英语
WOS记录号WOS:000761006800005
出版者American Institute of Physics Inc.
EI入藏号20220911705236
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/95723
专题条纹相机工程中心
通讯作者He, Kai; Tian, Jinshou
作者单位1.Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'An Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Shaanxi, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Collaborative Innovation Centre of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai; 200240, China;
4.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China;
5.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
推荐引用方式
GB/T 7714
Wang, Gang,He, Kai,Liu, Yiheng,et al. Signal recovery of a Fabry-Pérot interferometric x-ray pulse detector based on the RadOptic effect[J]. Journal of Applied Physics,2022,131(6).
APA Wang, Gang.,He, Kai.,Liu, Yiheng.,Yan, Xin.,Gao, Guilong.,...&Tian, Jinshou.(2022).Signal recovery of a Fabry-Pérot interferometric x-ray pulse detector based on the RadOptic effect.Journal of Applied Physics,131(6).
MLA Wang, Gang,et al."Signal recovery of a Fabry-Pérot interferometric x-ray pulse detector based on the RadOptic effect".Journal of Applied Physics 131.6(2022).
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