摘要
该文应用统计光学理论研究微光成像;结合雪崩光电二极管(APD)光子探测器件的工作特点,采用蒙特卡洛方法模拟光子计数图像的成像过程。结果表明,通过基于器件特性和光子运动统计规律的仿真实验可以获得光子计数图像。以仿真流程为依据搭建了固态APD光子计数成像实验系统。在10-5lx环境照度下,通过对目标扫描得到一系列光子计数值。将光子计数数据进行存储和运算,恢复了光子计数图像。实验证明,基于APD的成像系统可以实现微光环境下目标的二维探测成像。
The low light level（LLL） imaging is studied by means of the theory of statistical optics.The imaging process of the photon counting image is simulated by the Monte Carlo method and combining the working characteristics of the avalanche photodiode（APD） photon detector.The results indicate that the photon counting image can be obtained by the simulation experiments which make use of the performances of the APDs and statistical law of the motion of the photons.The photon counting imaging experimental system is built based on the simulation flow.A series of photon counting values is obtained by scanning the target at 10-5lx.The data of photon counting are stored and calculated to get the photon counting images.The experimental results prove that the 2-dimensional imaging detection can be implemented based on the APDs in the low light level conditions.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2010年第5期649-652,共4页
Journal of Nanjing University of Science and Technology
基金
江苏省自然科学基金(BK2008049)
教育部博士点基金(20070288011)
南京理工大学自主科研专项计划资助项目(2010ZYTS033)
关键词
成像系统
雪崩光电二极管
光子计数
imaging systems
avalanche photodiodes
photon counting
