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Title: Dielectric Metasurface Analogue of Electromagnetically Induced Transparency

 [1];  [2];  [2];  [1]
  1. Vanderbilt University, Nashville
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: CLEO: QELS_Fundamental Science 2015, San Jose, CA, USA, 20150510, 20150515
Country of Publication:
United States

Citation Formats

Yang, Yuanmu, Kravchenko, Ivan I, Briggs, Dayrl P, and Valentine, Jason. Dielectric Metasurface Analogue of Electromagnetically Induced Transparency. United States: N. p., 2015. Web.
Yang, Yuanmu, Kravchenko, Ivan I, Briggs, Dayrl P, & Valentine, Jason. Dielectric Metasurface Analogue of Electromagnetically Induced Transparency. United States.
Yang, Yuanmu, Kravchenko, Ivan I, Briggs, Dayrl P, and Valentine, Jason. 2015. "Dielectric Metasurface Analogue of Electromagnetically Induced Transparency". United States. doi:.
title = {Dielectric Metasurface Analogue of Electromagnetically Induced Transparency},
author = {Yang, Yuanmu and Kravchenko, Ivan I and Briggs, Dayrl P and Valentine, Jason},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2015,
month = 1

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  • Fano-resonant plasmonic metamaterials and nanostructures have become a major focus of the nanophotonics fields over the past several years due their ability to produce high quality factor (Q-factor) resonances. The origin of such resonances is the interference between a broad and narrow resonance, ultimately allowing suppression of radiative damping. However, Fano-resonant plasmonic structures still suffer non-radiative damping due to Ohmic loss, ultimately limiting the achievable Q-factors to values less than ~10. Here, we report experimental demonstration of Fano-resonant silicon-based metamaterials that have a response that mimics the electromagnetically induced transparency (EIT) found in atomic systems. Due to extremely low absorptionmore » loss, a record-high quality factor (Q-factor) of 306 was experimentally observed. Furthermore, the unit cell of the metamaterial was designed with a feed-gap which results in strong local field enhancement in the surrounding medium resulting in strong light-matter interaction. This allows the metamaterial to serve as a refractive index sensor with a figure-of-merit (FOM) of 101, far exceeding the performance of previously demonstrated localized surface plasmon resonance sensors.« less
  • We report on our experimental work concerning a planar metamaterial exhibiting classical electromagnetically induced transparency (EIT). Using a structure with two mirrored split-ring resonators as the dark element and a cut wire as the radiative element, we demonstrate that an EIT-like resonance can be achieved without breaking the symmetry of the structure. The mirror symmetry of the metamaterial's structural element results in a selection rule inhibiting magnetic dipole radiation for the dark element, and the increased quality factor leads to low absorption (<10%) and large group index (of the order of 30).
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