Dynamic 3D metasurface holography via cascaded polymer dispersed liquid crystal  

作　　者：Shuo Sun Jin Li Xiaoxun Li Xianyu Zhao Kun Li Liang Chen 

机构地区：[1]College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China [2]School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China [3]Science and Technology Center for Quantum Biology,National Institute of Extremely-Weak Magnetic Field Infrastructure,Hangzhou 310051,China [4]Beihang Hangzhou Innovation Institute,Hangzhou 310052,China [5]Joint International Research Laboratory of Information Display and Visualization,School of Electronic Science and Engineering,Southeast University,Nanjing 210000,China [6]CamOptics(Suzhou)Ltd.,Suzhou 215000,China

出　　处：《Microsystems & Nanoengineering》2024年第6期461-471,共11页微系统与纳米工程(英文)

基　　金：financially supported by the Zhejiang Provincial Science and Technology Plan(“Jianbing and Lingyan”)Project(2024C01099);National Natural Science Fund for Excellent Young Scientists Fund Program(Overseas),Fundamental Research Funds for the Provincial Universities of Zhejiang(2023YW103);the 27th student research project of China Jiliang University(2024X27039).

摘　　要：Metasurface with natural static structure limits the development of dynamic metasurface holographic display with rapid response and broadband.Currently,liquid crystal(LC)was integrated onto the metasurface to convert the passive metasuface into an active one.But,majority of LC-assisted active metasurfaces often exhibit trade-offs among degree of freedom(DoF,typically less than 2),information capacity,response speed,and crosstalk.Herein,at first time,we experimentally demonstrate a cascaded device with polymer dispersed liquid crystal(PDLC)and broadband metasurface,enabling dynamic three-dimensional(3D)holographic display with ultra-high contrast,rapid response and continuous regulation.The PDLC droplets enable modulation of scattering state of incident light by high-speed dynamic control system for electric scanning.Based on self-addressing,rapid response and multi-channel PDLC-metasurface device,the dynamic holographic effect of monochrome holographic images switching and color-changing holographic display with broadband,low-crosstalk and high contrast,has been achieved.Our approach offers a novel perspective on dynamic metasurface.

关 键 词：SURFACE HOLOGRAPHIC CRYSTAL 

分 类 号：O43[机械工程—光学工程]