1 College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China; 2 School of Computer and Information Engineering, Hunan University of Technology and Business, Changsha 410205, China
Abstract Scattering medium in light path will cause distortion of the light field, resulting in poor signal-to-noise ratio (SNR) of ghost imaging. The disturbance is usually eliminated by the method of pre-compensation. We deduce the intensity fluctuation correlation function of the ghost imaging with the disturbance of the scattering medium, which proves that the ghost image consists of two correlated results: the image of scattering medium and the target object. The effect of the scattering medium can be eliminated by subtracting the correlated result between the light field after the scattering medium and the reference light from ghost image, which verifies the theoretical results. Our research may provide a new idea of ghost imaging in harsh environment.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61871431, 61971184, and 62001162).
Corresponding Authors:
Yanfeng Bai, Xiquan Fu
E-mail: yfbai@hnu.edu.cn;fuxq@hnu.edu.cn
Cite this article:
Qin Fu(付芹), Yanfeng Bai(白艳锋), Wei Tan(谭威), Xianwei Huang(黄贤伟), Suqin Nan(南苏琴), and Xiquan Fu(傅喜泉) Principle of subtraction ghost imaging in scattering medium 2023 Chin. Phys. B 32 064203
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