液晶包层波导技术研究进展  

Research progress on liquid crystal cladding waveguide technology

作　　者：刁志辉[1,2,3,4] 毕泽坤 范维方 蔚云慧 穆全全 DIAO Zhihui;BI Zekun;FAN Weifang;YU Yunhui;MU Quanquan(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Science,Changchun 130033,China;State Key Laboratory of Applied Optics,Changchun 130033,China;Key Laboratory of Optical System Advanced Manufacturing Technology,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 101408,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,吉林长春130033 [2]应用光学国家重点实验室,吉林长春130033 [3]中国科学院光学系统先进制造技术重点实验室,吉林长春130033 [4]中国科学院大学,北京101408

出　　处：《液晶与显示》2024年第5期697-706,共10页Chinese Journal of Liquid Crystals and Displays

基　　金：长春市国家重点实验室(学科类)重大专项(No.23GZZ07);国家重点研发计划(No.2021YFB3600300);吉林省全国重点实验室(学科类)重大专项(No.SKL202402022)。

摘　　要：液晶包层波导以波导为载体、以液晶为工作物质,包层中的液晶通过倏逝波调控芯层中的波导模式。相比于传统液晶器件,液晶包层波导能够巧妙解耦光线调制距离与液晶层厚度,并基于表面层液晶作用显著降低液晶回弹时间,具有调制幅度大、响应速度快的优势。本文综述了液晶包层波导技术在光束扫描、傅里叶变换光谱领域的研究进展,并展望了液晶包层波导技术在可重构光子器件领域的应用前景。不同的宏观应用表现均源于液晶包层对波导模式的微观调控。凭借独特的工作方式,液晶包层波导赋予了宏观应用新的技术优势。本综述为新型液晶光束调控方法提供一种重要的研究思路。The liquid crystal cladding waveguide uses the waveguide as the carrier and liquid crystal as the working substance.The liquid crystal in the cladding regulates the waveguide mode in the core layer through evanescent waves.Compared with traditional liquid crystal devices,liquid crystal cladding waveguides can cleverly decouple the light modulation distance and the thickness of the liquid crystal layer,and significantly reduce the liquid crystal rebound time based on the action of surface layer liquid crystals.It has the advantages of large modulation amplitude and fast response speed.This article reviews the research progress of liquid crystal cladding waveguide technology in the fields of beam scanning and Fourier transform spectroscopy,and looks forward to the application prospects of liquid crystal cladding waveguide technology in the field of reconfigurable photonic devices.Different macroscopic application performances are derived from the microscopic control of the waveguide mode by the liquid crystal cladding,and its unique working method gives new technical advantages to macroscopic applications.This review will provide an important research idea for new liquid crystal beam control methods.

关 键 词：液晶 波导 光调控 

分 类 号：O734[理学—晶体学] O753.2