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Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators
Author(s) -
Kim Inki,
Ansari Muhammad Afnan,
Mehmood Muhammad Qasim,
Kim WonSik,
Jang Jaehyuck,
Zubair Muhammad,
Kim YoungKi,
Rho Junsuk
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202004664
Subject(s) - holography , materials science , liquid crystal , holographic display , optoelectronics , computer science , polarization (electrochemistry) , optics , physics , chemistry
Flat optics, realized by the artificially created 2D material platform called optical metasurfaces, is currently undergoing a science‐to‐technology transition. However, “real‐time” active operations of such flat optical devices remain yet unresolved. Here, liquid crystals (LCs)‐integrated metaholograms for ultracompact dynamic holographic displays are proposed. The anisotropic nature of the LCs allows facile and repeatable manipulation of the polarization of light. Specifically designed (“designer”) LCs and efficient helicity‐encoded metaholograms are combined to realize stimuli‐responsive dynamic displays. The designer LC modulators are used as switches that enable a variety of external stimuli (e.g., electric field, heat, surface pressure) to operate holographic images in real‐time. Such a dynamic metaholographic platform will provide a path to external stimuli‐driven “smart” sensing and display applications such as hologram labels for temperature/pressure/touch monitoring and interactive holographic displays with haptic motion recognition.