受光元件-旭昶技术简报中文版
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第36卷 第7期2021年7月 液晶与显示 Chinese Journal of Liquid Crystals and Displays Vol.36 No.7 Jul.2021 收稿日期:2021-01-06;修订日期:2021-01-31. 基金项目:国家自然科学基金(No.62035008,No.61922038)Supported by National Natural Science Foundation of China(No.62035008,No.61922038) *通信联系人,E-mail:huwei@nju.edu.cn文章编号:1007-2780(2021)07-0921-18光取向液晶微结构及其光子元件曹慧敏1,吴赛博1,王靖阁2,胡 伟1*(1.南京大学现代工程与应用科学学院,江苏南京210093;2.菏泽职业学院,山东菏泽274000)摘要:液晶是一类具有自组装和刺激响应特性的软物质,其作为当今主流信息显示技术的依托材料而备受瞩目。
伴随着液晶理论与技术的发展与革新,人们对这类材料的理解不断加深。
近年来,基于光取向技术对液晶微结构的灵活操控,液晶研究逐渐从传统显示领域向更加前沿的液晶光子学领域过渡。
在平面光学元件、结构光场、全光互连、模分复用光通信等领域展现出蓬勃的生机。
本文综述了南京大学液晶与光子技术研究中心在光取向液晶微结构及其光子元件领域的最新进展,具体讨论了多层级液晶畴构筑、光寻址液晶调光技术、光通信与太赫兹液晶元件。
关 键 词:液晶;光取向;软物质;微结构;光子元件中图分类号:O753+.2 文献标识码:A doi:10.37188/CJLCD.2021-0004Photoalignment enabled liquid crystal microstructuresfor optics and photonicsCAO Hui-min1,WU Sai-bo1,WANG Jing-ge2,HU Wei 1*(1.College of Engineering and Applied Sciences,Nanjing University,Nanjing210093,China;2.Heze Vocational College,Heze 274000,China)Abstract:Liquid crystal(LC)is a kind of functional soft matter featured by self-assembly and stimuliresponsiveness.It is widely known as a fundamental material for current mainstream information dis-play industry.With the development and innovation of LC theory and technology,understanding onsuch a material system has been significantly extended.Recently,the manipulation of LC microstruc-tures has been flexibly enabled via aphotoalignment technique,and the research focus has been grad-ually transitioned from traditional displays to advanced LC photonics.It is expected to provide greatopportunities in the fields of planar optics,structured light fields,optical cross connection,and modedivision multiplexing optical communications.This review presents the latest works of the ResearchCenter for Liquid Crystal and Photonics of Nanjing University in the field of photoalignment-enabledLC microstructures and photonic applications.To be specific,LC hierarchical architectures,opticallyaddressed spatial light modulators,and LC telecom/terahertz elements are separately discussed.Key words:liquid crystals;photoalignment;soft matter;microstructures;photonics. All Rights Reserved.1 引 言 液晶(liquid crystal,LC)是介于液体和晶体之间的一种物质状态,同时具有液体的流动性和晶体的各向异性。