Electrically tunable all-dielectric optical metasurfaces based on liquid crystals

Andrei Komar; Zheng Fang; Justus Bohn; Jürgen Sautter; Manuel Decker; Andrey Miroshnichenko; Thomas Pertsch; Igal Brener; Yuri S. Kivshar; Isabelle Staude; Dragomir N. Neshev

doi:10.1063/1.4976504

Electrically tunable all-dielectric optical metasurfaces based on liquid crystals

Andrei Komar, Zheng Fang, Justus Bohn, Jürgen Sautter, Manuel Decker, Andrey Miroshnichenko, Thomas Pertsch, Igal Brener, Yuri S. Kivshar, Isabelle Staude, Dragomir N. Neshev^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

270 Citations (Scopus)

Abstract

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%. Our experimental demonstration of voltage control of dielectric metasurfaces paves the way for new types of electrically tunable metadevices, including dynamic displays and holograms.

Original language	English
Article number	071109
Journal	Applied Physics Letters
Volume	110
Issue number	7
DOIs	https://doi.org/10.1063/1.4976504
Publication status	Published - 13 Feb 2017

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abstract = "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%. Our experimental demonstration of voltage control of dielectric metasurfaces paves the way for new types of electrically tunable metadevices, including dynamic displays and holograms.",

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AU - Komar, Andrei

AU - Fang, Zheng

AU - Bohn, Justus

AU - Sautter, Jürgen

AU - Decker, Manuel

AU - Miroshnichenko, Andrey

AU - Pertsch, Thomas

AU - Brener, Igal

AU - Kivshar, Yuri S.

AU - Staude, Isabelle

AU - Neshev, Dragomir N.

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AB - 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%. Our experimental demonstration of voltage control of dielectric metasurfaces paves the way for new types of electrically tunable metadevices, including dynamic displays and holograms.

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JO - Applied Physics Letters

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Electrically tunable all-dielectric optical metasurfaces based on liquid crystals

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