Quantum-illumination-inspired active single-pixel imaging with structured illumination

被引:3
|
作者
Zhang, Tiantian [1 ]
Ye, Zhiyuan [1 ]
Wang, Hai-Bo [1 ]
Xiong, Jun [1 ]
机构
[1] Beijing Normal Univ, Dept Phys, Appl Opt Beijing Area Major Lab, Beijing 100875, Peoples R China
基金
中国国家自然科学基金;
关键词
Compendex;
D O I
10.1364/AO.438642
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Quantum-illumination-inspired single-pixel imaging (QII-SPI) or computational ghost imaging protocol is proposed to improve image quality in the presence of strong background and stray light. According to the reversibility of the optical path, a digital micro-mirror device acts as a structured light modulator and a spatial light filter simultaneously, which can effectively eliminate 50% of stray light. Accompanied by a 6 dB gain of detection signal-to-noise ratio under an equivalent loss condition, our scheme only requires a simple and minor modification on the placement of the single-pixel detector based on the original SPI system. Since QII-SPI will obtain almost the same reconstruction results as the passive SPI technology in principle, one can, therefore, adjust the placement position of the detector, without exchanging the relative position of the detector and the light source to realize the flexible conversion of the SPI system from active to passive. Also, this work initially discusses the influence of relative coherence time onHadamard-based SPI driven by a thermal source. This work brings new insights into the optical path design of the SPI technology, paving the way for the practical application of active SPI in stray light environments. (C) 2021 Optical Society of America
引用
收藏
页码:10151 / 10159
页数:9
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