Negative refraction in split-ring-resonator stack at normal incidence

B. Kanté; R. Ghasemi; A. de Lustrac; J.-M. Lourtioz

doi:10.1117/12.826259

1 September 2009 Negative refraction in split-ring-resonator stack at normal incidence

B. Kanté, R. Ghasemi, A. de Lustrac, J.-M. Lourtioz

Proceedings Volume 7392, Metamaterials: Fundamentals and Applications II; 73921O (2009) https://doi.org/10.1117/12.826259
Event: SPIE NanoScience + Engineering, 2009, San Diego, California, United States

Abstract

Metamaterials building blocks, from microwave to optical range are mainly based on metal-dielectric composite. In almost all structures with true negative index (not coming from losses) two kind of meta-atoms (electric and magnetic) are mixed in order to drive simultaneously the effective permittivity and permeability to negative values and thus to obtain a negative index of refraction. In this paper we show that two coupled structures with localized plasmons modes (e.g. Cut wires or Split-Ring-Resonators) can exhibit negative refractive index by their own, by appropriately controlling the hybridization scheme of the so called plasmons modes. As a result, the metallic filling factor is drastically reduced and low losses especially at optical frequencies may allow realistic applications of metamaterials.

Citation Download Citation

B. Kanté, R. Ghasemi, A. de Lustrac, and J.-M. Lourtioz "Negative refraction in split-ring-resonator stack at normal incidence", Proc. SPIE 7392, Metamaterials: Fundamentals and Applications II, 73921O (1 September 2009); https://doi.org/10.1117/12.826259

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