Electromagnetically Induced Transparency in Symmetric Planar Metamaterial at THz Wavelengths

Abstract : We report the experimental observation and the evidence of the analogue of electromagnetically-induced transparency (EIT) in a symmetric planar metamaterial. This effect has been obtained in the THz range thanks to a destructive Fano-interference between the two first modes of an array of multi-gap split ring resonators deposited on a silicon substrate. This structure is a planar thin film material with four-fold symmetry. Thanks to this property, a polarization-independent transmission has been achieved. The proposed metamaterial is well adapted to variety of slow-light applications in the infrared and optical range.
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Abdelwaheb Ourir, Bruno Gallas, Loic Becerra, Julien de Rosny, Pierre-Richard Dahoo. Electromagnetically Induced Transparency in Symmetric Planar Metamaterial at THz Wavelengths. Photonics, MDPI, 2015, 2, pp.308-316. ⟨10.3390/photonics2010308⟩. ⟨hal-01126619⟩

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