Simulation study of an x-ray sub-picosecond resolution detection system based on time-domain amplification

Author:

Wang Gang12ORCID,Liu Yiheng12,Yan Xin1,Gao Guilong1,Wang Tao1,Li Lili1,Zhao Yuetong12,Zhao Jinbo3,He Kai1,Tian Jinshou124

Affiliation:

1. Chinese Academy of Sciences (CAS)

2. University of Chinese Academy of Sciences

3. Huazhong University of Science and Technology

4. Shanxi University

Abstract

This study proposes what we believe to be a novel x-ray detection system that achieves a temporal resolution of 930 fs with photorefractive and four-wave mixing effects. The system comprises two parts: a signal-conversion system and signal-acquisition system. The signal-conversion system is based on the photorefractive effect, which converts x-ray evolution into the variation of infrared interference intensity. The signal-conversion sensor consists of ultra-fast response LT-GaAs and a high-resolution interference cavity, achieving a resolution of  767 fs. The signal-acquisition system consists of a time-domain amplification system based on four-wave mixing and a high-resolution signal-recording system with a resolution of 21 ps, providing a temporal resolution of 525 fs.

Funder

National Natural Science Foundation of China

Chinese Academy of Sciences

Strategic Priority Research Program of the Chinese Academy of Sciences, China

CAS “Light of West China” Program

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering

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