Magneto-optical response in bimetallic metamaterials

Magneto-optical response in bimetallic metamaterials

We demonstrate resonant Faraday polarization rotation in plasmonic arrays of bimetallic nano-ring resonators consisting of Au and Ni sections. This metamaterial design allows the optimization of the trade-off between the enhancement of magneto-optical effects and plasmonic dissipation. Nickel sectio...

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Bibliographic Details
Main Authors: Atmatzakis, Evangelos, Papasimakis, Nikitas, Fedotov, Vassili, Vienne, Guillaume, Zheludev, Nikolay I.
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2018
Subjects:
Magnetoplasmonics
Metamaterials
DRNTU::Engineering::Electrical and electronic engineering
Online Access:https://hdl.handle.net/10356/89788
http://hdl.handle.net/10220/46367
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Institution: Nanyang Technological University
Language: English
Description
Summary:We demonstrate resonant Faraday polarization rotation in plasmonic arrays of bimetallic nano-ring resonators consisting of Au and Ni sections. This metamaterial design allows the optimization of the trade-off between the enhancement of magneto-optical effects and plasmonic dissipation. Nickel sections corresponding to as little as ~6% of the total surface of the metamaterial result in magneto-optically induced polarization rotation equal to that of a continuous nickel film. Such bimetallic metamaterials can be used in compact magnetic sensors, active plasmonic components, and integrated photonic circuits.

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