Gap-plasmon-driven liquid-crystal integrated chiral metasurface for intensity tunable hologram at the visible frequencies

Younghwan Yang; Hongyoon Kim; Junsuk Rho

doi:10.1117/12.2672556

6 October 2023 Gap-plasmon-driven liquid-crystal integrated chiral metasurface for intensity tunable hologram at the visible frequencies

Younghwan Yang, Hongyoon Kim, Junsuk Rho

Author Affiliations +

Proceedings Volume PC12646, Metamaterials, Metadevices, and Metasystems 2023; PC126461N (2023) https://doi.org/10.1117/12.2672556
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Conference Poster

Abstract

Here, we propose liquid-crystal (LC) integrated metasurfaces to create intensity-tunable metaholography in the visible spectrum. The metasurface is composed of gap-shifted split ring resonators, which exhibit different optical responses depending on the input polarization states of light. The gap-shifted split ring resonators enable the perfect absorption of right-circularly polarized light (RCP), while they reflect left-circularly polarized with varied retardation phases. the integration of LC enables electrically tunable metaholograms, where the intensity of the holographic images can be adjusted by controlling the applied voltages on LC. The circular dichroism in reflection reaches (experiments) 0.91 and (simulations) 0.99.

Citation Download Citation

Younghwan Yang, Hongyoon Kim, and Junsuk Rho "Gap-plasmon-driven liquid-crystal integrated chiral metasurface for intensity tunable hologram at the visible frequencies", Proc. SPIE PC12646, Metamaterials, Metadevices, and Metasystems 2023, PC126461N (6 October 2023); https://doi.org/10.1117/12.2672556

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