Dynamic Beam Switching by Liquid Crystal Tunable Dielectric Metasurfaces | Zendy

Andrei Komar | Zendy; Ramón PaniaguaDomínguez | Zendy; Andrey E. Miroshnichenko | Zendy; Ye Yu | Zendy; Yuri S. Kivshar | Zendy; Arseniy I. Kuznetsov | Zendy; Dragomir N. Neshev | Zendy

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Dynamic Beam Switching by Liquid Crystal Tunable Dielectric Metasurfaces

Author(s) -

Andrei Komar,

Ramón PaniaguaDomínguez,

Andrey E. Miroshnichenko,

Ye Yu,

Yuri S. Kivshar,

Arseniy I. Kuznetsov,

Dragomir N. Neshev

Publication year - 2018

Publication title -

acs photonics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.735

H-Index - 89

ISSN - 2330-4022

DOI - 10.1021/acsphotonics.7b01343

Subject(s) - beam steering , materials science , liquid crystal , dielectric , optoelectronics , optical switch , optics , beam (structure) , deflection (physics) , laser , laser beams , isotropy , realization (probability) , physics , statistics , mathematics

Dynamic steering of laser beams by ultrathin optical metasurfaces is a significant research advance for possible applications in remote ranging and sensing. A unique platform for such important functionalities is offered by dielectric metasurfaces that have the highest transmission efficiency. However, the realization of dynamically tunable metasurfaces still remains a challenge. Here we experimentally demonstrate the dynamic switching of beam deflection by a silicon-nanodisk dielectric metasurface infiltrated with liquid crystals. In particular, we show the switching of a laser beam from 0° to a 12° angle with an efficiency of 50% by heating the metasurface to modify the liquid crystal state from nematic to isotropic. Our results open important opportunities for tunable ultrathin beam steering metadevices.

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