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arXiv · 1405.7915

Large quality factor in sheet metamaterials made from dark dielectric meta-atoms

Aditya Jain·Philippe Tassin·Thomas Koschny·Costas M. Soukoulis
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Abstract

Metamaterials-or artificial electromagnetic materials-can create media with properties unattainable in nature, but mitigating dissipation is a key challenge for their further development. Here, we demonstrate a low-loss metamaterial by exploiting dark bound states in dielectric inclusions coupled to the external waves by small nonresonant metallic antennas. We experimentally demonstrate a dispersion-engineered metamaterial based on a meta-atom made from alumina, and we show that its resonance has a much larger quality factor than metal-based meta-atoms. Finally, we show that our dielectric meta-atom can be used to create sheet metamaterials with negative permittivity or permeability.

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Aditya Jain, Philippe Tassin, Thomas Koschny, Costas M. Soukoulis. 2014-05-30. Large quality factor in sheet metamaterials made from dark dielectric meta-atoms. https://doi.org/10.1103/physrevlett.112.117403

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