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Measurement of polarization-sensitive characteristic of scientific CCD detector
Optik ( IF 3.1 ) Pub Date : 2020-09-10 , DOI: 10.1016/j.ijleo.2020.165593
Tianquan Liang , Qingxin Tang , Quanzhou Yu , Zhenfang He , Baohua Zhang

Polarization measurement accuracy is an important indicator of the polarization remote sensing detection system. In order to effectively analyze the factors that affect the polarization measurement accuracy, it is necessary to analyze the polarization sensitive characteristics of the scientific CCD detector. Taking the 1k*1k area array CCD detector of DALSA Company as the research object, the experimental method of polarization sensitivity detection of scientific grade CCD detector is systematically introduced. The integrating sphere is used as a non-polarized light source, and a polarizer is installed at the light exit port, which defines the degree of polarization sensitivity. Acquired the data through three different methods which are rotated the polarizer at the same time fixed the CCD, the CCD and polarizer coaxial rotated and fixed polarizer while rotated CCD respectively, analyze the obtained data separately. The experiment results show that the polarization sensitive degree of the CCD detector is 0.58, and the polarization sensitivity suppression measures with the addition of the depolarizer assembly are considered. The results show that this method obviously suppresses the polarization sensitivity of the CCD, and its polarization sensitivity is 0.034. The research results have important guiding significance for the development of high-precision polarization detection system and polarization calibration research.



中文翻译:

科学CCD探测器的偏振敏感特性的测量

偏振测量精度是偏振遥感探测系统的重要指标。为了有效地分析影响偏振测量精度的因素,有必要分析科学的CCD探测器的偏振敏感特性。以DALSA公司的1k * 1k面阵CCD检测器为研究对象,系统地介绍了科学级CCD检测器偏振灵敏度检测的实验方法。积分球用作非偏振光源,并且在光出口处安装了一个偏振器,它定义了偏振敏感度。通过三种不同的方法获取数据,这些方法同时旋转偏振镜并固定CCD,CCD和偏光镜分别同轴旋转和固定偏光镜同时旋转CCD,分别分析获得的数据。实验结果表明,CCD探测器的偏振敏感度为0.58,并考虑了增加消偏器组件后的偏振敏感抑制措施。结果表明,该方法明显抑制了CCD的偏振灵敏度,其偏振灵敏度为0.034。研究结果对高精度极化检测系统的发展和极化定标研究具有重要的指导意义。并且考虑了通过增加去偏振器组件来抑制偏振灵敏度的措施。结果表明,该方法明显抑制了CCD的偏振灵敏度,其偏振灵敏度为0.034。研究结果对高精度极化检测系统的发展和极化定标研究具有重要的指导意义。并且考虑了通过增加去偏振器组件来抑制偏振灵敏度的措施。结果表明,该方法明显抑制了CCD的偏振灵敏度,其偏振灵敏度为0.034。研究结果对高精度极化检测系统的发展和极化定标研究具有重要的指导意义。

更新日期:2020-09-10
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