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Title: Electrically tunable all-dielectric optical metasurfaces based on liquid crystals

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 up to 75%. To the best of our knowledge, this is the first experimental demonstration of voltage control of a dielectric metasurface, paving the way for new types of electrically tunable metadevices, including dynamic displays and holograms.
Authors:
 [1] ;  [1] ; ORCiD logo [2] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [1]
  1. Australian National Univ., Canberra, ACT (Australia)
  2. Friedrich Schiller Univ., Jena (Germany)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Australian National Univ., Canberra, ACT (Australia); Friedrich Schiller Univ., Jena (Germany)
Publication Date:
Report Number(s):
SAND-2017-2081J
Journal ID: ISSN 0003-6951; 651206
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 110; Journal Issue: 7; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1356223