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.
作者
陆延青
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)
出处
《物理》
CAS
北大核心
2023年第2期116-124,共9页
Physics
关键词
液晶
多层级结构
光取向
光场调控
太赫兹
liquid crystal
hierarchical structure
photo-alignment
light manipulation
terahertz
