Plasmon induced transparency in cascaded π-shaped metamaterials

We experimentally and numerically demonstrate a planar metamaterial consisting of two asymmetrically positioned π-structures in a single unit that exhibits plasmonic analogue of electromagnetically induced transparency (EIT). Through the coupling of the constituent nanorod elements, the proposed str...

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Bibliographic Details
Published inOptics express Vol. 19; no. 23; pp. 22607 - 22618
Main Authors Cetin, Arif E, Artar, Alp, Turkmen, Mustafa, Yanik, Ahmet Ali, Altug, Hatice
Format Journal Article
LanguageEnglish
Published United States 07.11.2011
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Summary:We experimentally and numerically demonstrate a planar metamaterial consisting of two asymmetrically positioned π-structures in a single unit that exhibits plasmonic analogue of electromagnetically induced transparency (EIT). Through the coupling of the constituent nanorod elements, the proposed structure enables fine spectral tuning of the EIT-like behavior and controlling the location of near field enhancement. Originated from the asymmetric cascaded π-structures, we introduce a more compact system which possesses the EIT-like characteristics and as well as much smaller mode volumes. Due to these properties, the proposed metamaterials can be utilized for a wide range of applications including bio-chemical sensors, optical filters and modulators and enhancement of non-linear processes.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.022607