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arXiv · 1705.06099

Active tuning of high-Q dielectric metasurfaces

Matthew Parry·Andrei Komar·Ben Hopkins·Salvatore Campione·Sheng Liu·Andrey E. Miroshnichenko·John Nogan·Michael B. Sinclair·Igal Brener·Dragomir N. Neshev
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Abstract

We demonstrate the active tuning of all-dielectric metasurfaces exhibiting high-quality factor (high-Q) resonances. The active control is provided by embedding the asymmetric silicon meta-atoms with liquid crystals, which allows the relative index of refraction to be controlled through heating. It is found that high quality factor resonances ($Q=270\pm30$) can be tuned over more than three resonance widths. Our results demonstrate the feasibility of using all-dielectric metasurfaces to construct tunable narrow-band filters.

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Matthew Parry, Andrei Komar, Ben Hopkins, Salvatore Campione, Sheng Liu, Andrey E. Miroshnichenko, John Nogan, Michael B. Sinclair, Igal Brener, Dragomir N. Neshev. 2017-05-17. Active tuning of high-Q dielectric metasurfaces. https://doi.org/10.1063/1.4997301

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