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Electrically tunable all-dielectric optical metasurfaces based on liquid crystals

Komar, Andrei; Fang, Zheng; Bohn, Justus; Sautter, Jurgen; Decker, Manuel; Miroshnichenko, Andrey; Pertsch, Thomas; Brener, Igal; Kivshar, Yuri; Staude, Isabelle; Neshev, Dragomir

Description

We demonstrate electrical tuning of the spectral response of a Mie-resonant dielectric metasurface consisting of silicon nanodisks embedded into liquid crystals. We use the reorientation of nematic liquid crystals in a moderate applied electric field to alter the anisotropic permittivity tensor around the metasurface. By switching a control voltage “on” and “off,” we induce a large spectral shift of the metasurface resonances, resulting in an absolute transmission modulation of up to 75%....[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/205603
Source: Applied Physics Letters
DOI: 10.1063/1.4976504
Access Rights: Open Access

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