Exploring the parameter space of broadband all-dielectric liquid crystal tunable metasurfaces in the visible

Haogang Cai; James A. Dolan; Lily Delalande; Juan J. de Pablo; Paul F. Nealey; Daniel Lopez

doi:10.1117/12.2583311

5 March 2021 Exploring the parameter space of broadband all-dielectric liquid crystal tunable metasurfaces in the visible

Haogang Cai, James A. Dolan, Lily Delalande, Juan J. de Pablo, Paul F. Nealey, Daniel Lopez

Author Affiliations +

Proceedings Volume 11695, High Contrast Metastructures X; 116950T (2021) https://doi.org/10.1117/12.2583311
Event: SPIE OPTO, 2021, Online Only

Abstract

Metasurfaces infiltrated with liquid crystals have become a particularly promising means of tuning their optical properties, due to liquid crystals’ large and broadband optical anisotropy. In order to fully explore the parameter space of broadband all-dielectric liquid crystal tunable metasurfaces in the visible, we undertake a comprehensive study based on TiO2 nanoresonator superarrays, sweeping geometric parameters (i.e. disc radius and disc-to-disc gap). We demonstrate both electrical and thermal switching, and visualize the resonance change caused by either the orientation or phase change of liquid crystal, which provides a practical library for the rational design of liquid crystal tunable metasurfaces.

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Haogang Cai, James A. Dolan, Lily Delalande, Juan J. de Pablo, Paul F. Nealey, and Daniel Lopez "Exploring the parameter space of broadband all-dielectric liquid crystal tunable metasurfaces in the visible", Proc. SPIE 11695, High Contrast Metastructures X, 116950T (5 March 2021); https://doi.org/10.1117/12.2583311

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