液晶偏振体光栅及其在增强现实波导显示中的应用  

Liquid crystal polarization volume gratings and their applications in augmented reality waveguide displays

作　　者：白梓嫣 蔡文锋 成茗 兰顺 孔德来 沈健 岑梦嘉 陈远 刘言军 BAI Ziyan;CAI Wenfeng;CHENG Ming;LAN Shun;KONG Delai;SHEN Jian;CEN Mengjia;CHEN Yuan;LIU Yanjun(Department of Electronic and Electrical Engineering,Southern University of Science and Technology,Shenzhen 518055,China;Shenzhen Engineering Research Center for High Resolution Light Field Display and Technology,Southern University of Science and Technology,Shenzhen 518055,China;State Key Laboratory of Optical Fiber and Cable Manufacture Technology,Southern University of Science and Technology,Shenzhen 518055,China;Sunny OmniLight NanoOptics Information Technology Co.Ltd.,Shanghai 201315,China)

机构地区：[1]南方科技大学电子与电气工程系,广东深圳518055 [2]深圳市高分辨光场显示与技术工程研究中心,广东深圳518055 [3]光纤光缆先进制造与应用技术全国重点实验室(南方科技大学),广东深圳518055 [4]舜宇奥来微纳光电信息技术(上海)有限公司,上海201315

出　　处：《液晶与显示》2024年第5期629-645,共17页Chinese Journal of Liquid Crystals and Displays

基　　金：国家重点研发计划(No.2022YFA1203702);国家自然科学基金(No.62075093,No.62211530039);广东省“珠江人才计划”引进创新创业团队项目(No.2017ZT07C071);深圳市发改委工程中心项目(No.XMHT20220114005);深圳市科创委科技计划(No.JCYJ20220818100413030)。

摘　　要：液晶偏振体光栅是一种基于几何相位的布拉格光栅,具有偏振选择性强、衍射效率高、衍射角大以及制备工艺简单等优点,在增强现实系统中具有潜在的应用前景。本文详细介绍了液晶偏振体光栅的工作原理和光学特性,并对其近年来的研究进展进行了总结。重点讨论了液晶偏振体光栅在解决增强现实波导显示中各种关键性问题的研究,展望了其在增强现实波导显示中的应用前景。最后,总结了目前液晶偏振体光栅应用于波导显示领域存在的问题和发展趋势。Liquid crystal polarization volume gratings are one kind of geometrical phase Bragg gratings.They exhibit strong polarization selectivity,high diffraction efficiency,large diffraction angles,and simple fabrication,making them ideal for augmented reality systems.In this review,we introduce the working principle and optical properties of liquid crystal polarization volume gratings.Then,we summarize the recent research progress in this research field.In addition,we particularly discuss the research of liquid crystal polarization volume gratings and their potential applications in solving key challenges for augmented reality waveguide displays.Finally,we summarize the current issues and development trends of waveguide displays based on liquid crystal polarization volume gratings.

关 键 词：液晶偏振体光栅 增强现实 波导显示 视场角 出瞳扩展 全彩显示 

分 类 号：O753.2[理学—晶体学]