Dual photopatterning of rotational fingerprint superstructures  

作　　者：潘锦涛 钱嘉欣 马玲玲 王泽宇 郑仁 王宁 李炳祥 陆延青 Jintao Pan;Jiaxin Qian;Lingling Ma;Zeyu Wang;Ren Zheng;Ning Wang;Bingxiang Li;Yanqing Lu(National Laboratory of Solid State Microstructures,Key Laboratory of Intelligent Optical Sensing and Manipulation,College of Engineering and Applied Sciences,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210023,China;College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]National Laboratory of Solid State Microstructures,Key Laboratory of Intelligent Optical Sensing and Manipulation,College of Engineering and Applied Sciences,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210023,China [2]College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China

出　　处：《Chinese Optics Letters》2023年第4期85-90,共6页中国光学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(Nos.2021YFA1202000 and 2022YFA1405000);the National Natural Science Foundation of China(No.52003115);the Natural Science Foundation of Jiangsu Province,Major Project(No.BK20212004);the Natural Science Foundation of Jiangsu Province(No.BK20200320);the support of Xiaomi Young Scholar program。

摘　　要：Controlling architecture of hierarchical microstructures in liquid crystals(LCs]plays a crucial role in the development of novel soft-matter-based devices.Chiral LC fingerprints are considered as a prospective candidate for various applications;however,the efficient and real-time command of fingerprint landscapes still needs to be improved.Here,we achieve elaborate rotational fingerprint superstructures via dual photopatterning semifree chiral LC films,which combine the photoalignment technique and a dynamic light patterning process.An intriguing spatial-temporal rotational behavior is presented during the patterning of chiral superstructures.This work opens new avenues for the applications of chiral LCs in soft actuators,sensing,and micromanufacturing.

关 键 词：liquid crystal PHOTOALIGNMENT FINGERPRINTS chiral photoresponsive materials 

分 类 号：O753.2[理学—晶体学]