空间调制型偏振检测技术研究现状及发展趋势  

Research Statues and Prospects of Spatially Modulated Polarimetry

作　　者：高超 翁剑宇 曹晓昱 张斌[1,2] 雷兵 Gao Chao;Weng Jianyu;Cao Xiaoyu;Zhang Bin;Lei Bing(College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,Hunan,China;Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,Hunan,China)

机构地区：[1]国防科技大学前沿交叉学科学院,湖南长沙410073 [2]国防科技大学南湖之光实验室,湖南长沙410073

出　　处：《光学学报》2023年第17期79-93,共15页Acta Optica Sinica

基　　金：国家自然科学基金(61975235);湖南省自然科学基金(2019JJ40342)。

摘　　要：空间调制型偏振检测技术是利用微偏振片阵列、角向或径向偏振片、涡旋波片等器件对光强分布进行空间调制以实现偏振信息测量的一种技术,具有光路结构简单、稳定性好、测量速度快、精度高等优势,在目标探测识别、工业及生化检测等领域具有重要应用。首先,对各种空间调制型Stokes矢量和Mueller矩阵偏振检测技术的工作原理、技术特点进行综述分析;然后,对近年来发展迅速的基于涡旋波片的空间调制型偏振检测技术进行详细阐述,重点对基于涡旋半波片和1/4波片的Stokes偏振仪、基于双涡旋波片的Mueller矩阵偏振仪的工作原理、检测效果和误差校准等内容进行介绍;最后,对空间调制型偏振检测技术的主要发展趋势进行展望。Significance Polarization is one of the fundamental properties of light waves and an important carrier of information.The technique of measuring polarization is known as polarimetry.Compared with traditional intensity detection methods,polarimetry can significantly enhance the ability to acquire and analyze target information by fully utilizing the polarization characteristics of light waves.Due to its unique advantages,polarimetry has been widely used in various fields such as remote sensing,industrial inspection,biomedical,and environmental monitoring.The key to polarimetry is to obtain the Stokes vector of the measured light waves or the Mueller matrix of the measured sample,which correspond to the Stokes polarimetry and Mueller matrix polarimetry,respectively.Several methods have been proposed for achieving Stokes polarimetry and Mueller matrix polarimetry,including multi-channel polarimetry,temporally modulated polarimetry,spectral polarization modulated polarimetry,and spatially modulated polarimetry.In the multi-channel method,the incident beam is split into several channels with different polarization optics for analyzing the polarization state.In the last three methods,the incident light is modulated in the time domain,spectral domain,or spatial domain for measuring polarization information.The multi-channel scheme is competent for real-time monitoring,but its configuration is usually complicated to adjust.The configuration of temporally modulated polarimetry is compact,but it is restricted by poor stability and slow measurement speed.The spectral polarization modulated polarimetry obtains polarization information at a single integration interval without rotating or active components,but its measurement accuracy is limited,and its wave band is narrow.In contrast,spatially modulated polarimetry modulates the polarization information at different spatial locations by using the spatial modulation components,and it has the advantage of stability,rapidness,and compactness,so it is a promising technique for po

关 键 词：偏振检测 空间调制 Stokes矢量 MUELLER矩阵 涡旋波片 

分 类 号：O436[机械工程—光学工程]