液晶软光子学--光场的多自由度调控  

Liquid crystal soft mattonics--multi-degree manitipulation of light

作　　者：陆延青[1] LU Yan-Qing(Key Laboratory of Intelligent Optical Sensing and Manipulation of the Ministry of Education,College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,China)

机构地区：[1]南京大学现代工程与应用科学学院智能光传感与调控技术教育部重点实验室,南京210023

出　　处：《物理》2023年第2期116-124,共9页Physics

摘　　要：液晶是一类典型的软物质。它具有优异的外场调谐特性以及多层级的组装结构特征。文章介绍了作者在液晶光控取向技术及其光学应用方面取得的进展,如对液晶进行图案化编码实现任意液晶微结构的制备及多层级操纵,对光场的振幅、相位、偏振及波长等多自由度进行灵活、高效的调控,实现功能可调的液晶太赫兹器件等。Liquid crystal is a typical soft matter,with excellent external field tunability and hierarchical self-assembly.Here we present our recent work on the use of photo-alignment to manipulate the microstructure and even hierarchical structure of liquid crystals,resulting in various novel physical effects.Liquid crystal microstructures of arbitrary design have been fabricated by photo-patterning,which enables flexible and efficient control of the multi-dimensional parameters of light such as the amplitude,phase,polarization and wavelength.Liquid crystal based tunable terahertz devices have also been devised.

关 键 词：液晶 多层级结构 光取向 光场调控 太赫兹 

分 类 号：O753.2[理学—晶体学]