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Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators

Title of paper
Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators
Author
[김영기, 노준석교수 연구실-표지논문] 초소형 자극반응형 홀로그램
Publication in journal
Advanced Materials 2020, 2004664
Publication date
20201110


[Abstract]
 

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.

 

https://doi.org/10.1002/adma.202004664