摘要
针对平行光管内部因管壁反射或散射产生的杂散光,设计光阑抑制杂散光,以获得高质量的平面波。首先建立平行光管光束传输模型,对不同位置的光斑进行仿真;然后在此基础上设计消杂光光阑,分析光阑厚度和圆锥角对杂散光抑制效果的影响,以确定光阑设计参数;最后将设计制造的光阑安装到平行光管内,与没有安装光阑时进行光斑对比。无光阑时,接收屏接收的光斑存在明显的杂散光,且在距平行光管400 mm处杂散光和平行光重叠明显;安装光阑后,平行光束周围观察不到明显的杂散光,且在200 mm处获得高质量平面波。结果表明,设计的光阑可有效抑制杂散光。此研究为哈特曼探测器标定过程中平行光管的杂散光抑制提供参考方案。
To obtain high-quality plane waves,an diaphragm is designed to reduce the stray light caused by reflection or scattering from the tube wall of the collimator.First,a transmission model is established for the collimator,and the spots are simulated at different positions.Second,the diaphragm is simulated to analyze the influence of diaphragm thickness and cone angle on the stray light,thereby determining the appropriate parameters.Finally,the diaphragm is placed inside the collimator,and the light spot is compared with no diaphragm installed.Results indicate that without the diaphragm there is significant stray light,which overlaps the parallel light at a distance of 400 mm.After installing the diaphragm,stray light is not observed around the parallel beam,and a high-quality plane wave is obtained at 200 mm.Results indicate that stray light is effectively suppressed using the designed diaphragm.This study provides a reference scheme for suppressing stray light of the collimator during the calibration of Hartmann detectors.
作者
宋紫文
张黄轲
施文恺
钱奕龙
陆焕钧
毛红敏
曹召良
Song Ziwen;Zhang Huangke;Shi Wenkai;Qian Yilong;Lu Huanjun;Mao Hongmin;Cao Zhaoliang(Key Laboratory of Intelligent Optoelectronic Devices and Chips of Jiangsu Higher Education Institutions,School of Physical Science and Technology,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China;Advanced Technology Research Institute of Taihu Photon Center,School of Physical Science and Technology,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China)
出处
《激光与光电子学进展》
北大核心
2025年第7期129-135,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金(22205155)
江苏省自然科学基金(BK20220640)
“十四五”江苏省重点学科(2021135)
江苏省高校基础科学(自然科学)研究(22KJB150011)。
关键词
平行光管
哈特曼探测器
标定
杂散光
collimator
Hartmann detector
calibration
stray light
作者简介
通信作者:毛红敏,hongminmao@usts.edu.cn;通信作者:曹召良,caozl@usts.edu.cn。
