多路并行探测提高光子计数关联成像质量研究  

Improvement of Photon-Counting Correlated Imaging Quality by Multi-Channel Parallel Detection

作　　者：林俊秀 胡晨昱 王鹏威 薄遵望[1,2] 龚文林 Lin Junxiu;Hu Chenyu;Wang Pengwei;Bo Zunwang;Gong Wenlin(Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China;University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院上海光学精密机械研究所量子光学重点实验室,上海201800 [2]中国科学院大学,北京100049

出　　处：《光学学报》2019年第5期133-140,共8页Acta Optica Sinica

基　　金：国家自然科学基金(61571427);民用航天项目(D040301);中国科学院青年创新促进会优秀会员基金(2017-2013162)

摘　　要：构建了一种基于多路并行探测提高光子计数关联成像质量的方案,分析了其成像性能,并通过数值模拟验证了其有效性。探讨了探测路数、回波信号平均光子数和辐照散斑场的稀疏度对成像质量的影响。数值模拟结果表明,该方案下的关联成像质量与探测路数成正相关,随着回波信号平均光子数和辐照散斑场稀疏度的增加,成像质量先提升后降低。In this study, a scheme is constructed based on multi-channel parallel detection to improve the quality of photon-counting correlated imaging. Further, the imaging performance of the constructed scheme is analyzed and verified using numerical simulation. Subsequently, the influences of the detection channel number, the average level of the echo signal photon, and the sparsity of the irradiation speckle field on the imaging quality are discussed. The numerical simulation results show that the imaging quality is positively correlated with the detection channel numbers in this scheme. The imaging quality is first improved and then degraded with an increase in the average level of the echo signal photon and the sparsity of the irradiation speckle field.

关 键 词：成像系统 关联成像 光子计数 泊松分布 单光子探测 

分 类 号：O436[机械工程—光学工程]