Broadband negative refractive index obtained by plasmonic hybridization in metamaterials | Zendy

Hien T. Nguyen | Zendy; Tung Son Bui | Zendy; Sen Yan | Zendy; Guy A. E. Vandenbosch | Zendy; Peter Lievens | Zendy; Lam Dinh Vu | Zendy; Ewald Janssens | Zendy

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Broadband negative refractive index obtained by plasmonic hybridization in metamaterials

Author(s) -

Hien T. Nguyen,

Tung Son Bui,

Sen Yan,

Guy A. E. Vandenbosch,

Peter Lievens,

Lam Dinh Vu,

Ewald Janssens

Publication year - 2016

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4968802

Subject(s) - metamaterial , plasmon , broadband , refractive index , bandwidth (computing) , optics , materials science , microwave , optoelectronics , physics , telecommunications , computer science , quantum mechanics

We experimentally demonstrate broadband negative refractive index (NRI) behavior in combined dimer and fishnet dimer metamaterials operating in the GHz frequency range. The observations can be well explained by a hybridization model and are in agreement with numerical modelling results. Hybridization of the magnetic resonances is obtained by reducing the distance between the layers in the dimer structures. A ratio of the double negative refractive index bandwidth to operational frequency of approximately 10% was achieved in the fishnet dimer. The applicable frequency range of the broadband NRI was shown to scale with the size of the structures from the microwave to the far infrared.status: publishe

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