强激光与粒子束2011，Vol.23Issue(3)：821-825,5.DOI:10.3788/HPLPB20112303.0821
光子计数模式下的目标探测与成像
Detection and imaging of target in photon counting mode
摘要
Abstract
When light is so weak that a single photon is emitted, the single photon can be detected only in photon counting mode.The avalanche photodiode(APD) based on impact ionization effect is used as detector to construct an experimental system of photon counting imaging in low light level environment.The hardware of the system is composed of a single photon counter based on APD, a computer, a low light level illuminometer, two two-dimensional guides, a controller, an obscure box, and so on.The software of the controller is programmed in Altera's Quartus environment.It controls the movement of the guides.Human machine interface is developed by VC++ software, with the functions of data acquisition and processing, system functions control, and photon counting image display.The photon counting imaging system is all solid, the operation voltage is less than 35 V, and the dark count rate is less than 4 Hz.The detection and imaging of target achieved at 10-5 1x low light level by the system.关键词
光电子学/光子计数成像系统/雪崩光电二极管/盖革模式Key words
optoelectronics/ photon counting imaging system/ avalanche photodiode/ Geiger mode分类
信息技术与安全科学引用本文复制引用
尹丽菊,陈钱,顾国华,周蓓蓓..光子计数模式下的目标探测与成像[J].强激光与粒子束,2011,23(3):821-825,5.基金项目
江苏省自然科学基金项目(BK2008049) （BK2008049）
教育部博士点基金项目(20070288011) （20070288011）
南京理工大学自主科研专项计划项目(2010ZYTS033) （2010ZYTS033）
