Electromagnetically Induced Transparency in Symmetric Planar Metamaterial at THz Wavelengths
1
Laboratoire Ondes et Acoustique (LOA), Institut Langevin, ESPCI ParisTech, UMR 7587, CNRS, 1 rue Jussieu, Paris 75005, France
2
Institut des NanoSciences de Paris, UMR 7588, CNRS-UPMC, 4 place Jussieu, 75252 Paris cedex 05, France
3
LATMOS, Université de Versailles-Saint-Quentin-en-Yvelines, CNRS-UPMC-UVSQ (UMR 8190), Guyancourt 78280, France
*
Author to whom correspondence should be addressed.
Photonics 2015, 2(1), 308-316; https://doi.org/10.3390/photonics2010308
Received: 18 February 2015 / Revised: 3 March 2015 / Accepted: 4 March 2015 / Published: 19 March 2015
(This article belongs to the Special Issue New Frontiers in Plasmonics and Metamaterials)
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. View Full-TextKeywords:
metamaterial; induced transparency; slow light; infrared
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Ourir, A.; Gallas, B.; Becerra, L.; De Rosny, J.; Dahoo, P.R. Electromagnetically Induced Transparency in Symmetric Planar Metamaterial at THz Wavelengths. Photonics 2015, 2, 308-316.
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