用于偏振成像的液晶微偏振阵列研究进展  

Review on liquid crystal micropolarizer array for polarization imaging

作　　者：张士元 孙子珺 穆全全[1,2] 彭增辉 刘华[3] 刘畅 ZHANG Shi-yuan;SUN Zi-jun;MU Quan-quan;PENG Zeng-hui;LIU Hua;LIU Chang(State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130033, China;Center of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;School of Physics, Northeast Normal University, Changchun 130033, China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春130033 [2]中国科学院大学材料与光电研究中心,北京100049 [3]东北师范大学物理学院,吉林长春130033

出　　处：《液晶与显示》2022年第3期292-309,共18页Chinese Journal of Liquid Crystals and Displays

基　　金：国家重点研发计划(No.2021YFB3600300);国家自然科学基金(No.11704378,No.11974345,No.61775212,No.61875036,No.61975202,No.11774342);中国科学院国际人才计划(No.2020VTA0004)。

摘　　要：微偏振阵列是分焦平面偏振计的核心元件。相较于纳米线栅阵列,液晶偏振阵列有着设计灵活、工艺简便、性能稳定等独特优势,有望实现高性价比、高精准度的偏振测量与成像。本文综述了近年来国内外科研团队针对液晶微偏振阵列展开的研究,系统阐述了基于宾主型、偏振旋转型和相位延迟型3大类液晶偏振阵列的器件结构和工作原理,不同的液晶排列结构可以实现从单一线偏振到全Stokes矢量的测量和成像,最后讨论了液晶微偏振阵列与偏振探测技术相结合的发展趋势和应用中面临的挑战。Micropolarizer array(MPA)is the core component of division of focal plane polarimeter(DoFP).Compared with nano-wire-grid polarizer array,liquid crystal micropolarizer(LCMP)array has some unique advantages such as flexible design,simple process,good stability and show great potential to achieve not only cost-effective but also high precision polarization measurement and imaging.In this paper,we summarize the researches on LCMP array domestic and oversea in recent years.Here,three working principle of LCMP arrays:guest-host effect,polarization rotation and phase retardation as well as their structure are systematically elaborated.Different alignment structures of LCMP can achieve not only linear but full Stokes polarimetry.Finally,future development trends and key challenges of liquid crystal micropolarizer arrays and DoFP imaging technology are discussed.

关 键 词：液晶器件 微偏振阵列 光控取向 分焦平面偏振成像 

分 类 号：O436[机械工程—光学工程] O753.2[理学—光学]