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

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    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 ± 30) 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.

    Original languageEnglish
    Article number053102
    JournalApplied Physics Letters
    Volume111
    Issue number5
    DOIs
    Publication statusPublished - 31 Jul 2017

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