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arXiv · 1603.08481

Magneto-optical response in bimetallic metamaterials

Evangelos Atmatzakis·Nikitas Papasimakis·Vassili Fedotov·Guillaume Vienne·Nikolay I. Zheludev
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Abstract

We demonstrate resonant Faraday polarization rotation in plasmonic arrays of bimetallic nano-ring resonators consisting of Au and Ni sections. This metamaterial design allows to optimize the trade-off between the enhancement of magneto-optical effects and plasmonic dissipation. Although Ni sections correspond to as little as ~6% of the total surface of the metamaterial, the resulting magneto-optically induced polarization rotation is equal to that of a continuous film. Such bimetallic metamaterials can be used in compact magnetic sensors, active plasmonic components and integrated photonic circuits.

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Evangelos Atmatzakis, Nikitas Papasimakis, Vassili Fedotov, Guillaume Vienne, Nikolay I. Zheludev. 2016-03-28. Magneto-optical response in bimetallic metamaterials. https://arxiv.org/abs/1603.08481

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