Design and modeling of three-dimensional laser imaging system based on streak tube

被引：30
作者：
Xia, Wenze [1 ,2 ]
Han, Shaokun [1 ]
Ullah, Naeem [1 ]
Cao, Jingya [1 ]
Wang, Liang [1 ]
Cao, Jie [1 ]
Cheng, Yang [1 ,2 ]
Yu, Haoyong [2 ]
机构：
[1] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China
[2] Natl Univ Singapore, Dept Biomed Engn, Singapore 117575, Singapore
来源：
APPLIED OPTICS | 2017年 / 56卷 / 03期
基金：
中国国家自然科学基金;
关键词：
SIMULATIONS; PERFORMANCE;
D O I：
10.1364/AO.56.000487
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In the streak tube laser imaging system, there are two conflicts: the first is between high spatial resolution and wide field of view (FOV). The second is between high temporal resolution and deep depth of field (DOF). In this paper, a new non-scanning streak tube laser imaging system is presented. A microlens array with three different apertures is used to non-uniformly collect data from the image plane so the conflict between high spatial resolution and wide FOV is relieved and the detectable range of system is also increased. A remapping fiber optics with special design is used to realign the image plane on the two photocathodes of streak tubes to realize the operation mode of the two streak tubes so the conflict between high temporal resolution and deep DOF is relieved. The mathematical model of the entire imaging system is established based on the range equation. The structure parameters of the receiving optical system are optimized in order to achieve the optimal utilization rate of light energy. In the third, three simulated contrast experiments are organized, and the experiment results demonstrate that the imaging system proposed in this paper possesses properties of higher spatial resolution, wider FOV, higher temporal resolution, deeper DOF, and larger detectable range. (C) 2017 Optical Society of America
引用
收藏
页码：487 / 497
页数：11
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