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Magneto-optical response in bimetallic metamaterials

Magneto-optical response in bimetallic metamaterials
Magneto-optical response in bimetallic metamaterials
We demonstrate resonant Faraday polarization rotation in plasmonic arrays of bimetallic nanoring 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.
Atmatzakis, Evangelos
50cd8140-449f-46c1-b268-e9e042664b45
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Vienne, Guillaume
18853a49-de56-4785-b9d4-929876a0640b
Atmatzakis, Evangelos
50cd8140-449f-46c1-b268-e9e042664b45
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Vienne, Guillaume
18853a49-de56-4785-b9d4-929876a0640b

Atmatzakis, Evangelos, Papasimakis, Nikitas, Fedotov, Vassili and Vienne, Guillaume (2018) Magneto-optical response in bimetallic metamaterials Nanophotonics, 7, (1) (doi:10.1515/nanoph-2016-0162).

Record type: Article

Abstract

We demonstrate resonant Faraday polarization rotation in plasmonic arrays of bimetallic nanoring 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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Accepted/In Press date: 7 December 2016
e-pub ahead of print date: 22 July 2017
Published date: January 2018
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 405055
URI: http://eprints.soton.ac.uk/id/eprint/405055
PURE UUID: 0c529961-0daa-451d-a02c-bedb73a73d07
ORCID for Nikitas Papasimakis: ORCID iD orcid.org/0000-0002-6347-6466

Catalogue record

Date deposited: 26 Jan 2017 13:40
Last modified: 10 Jan 2018 05:03

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Contributors

Author: Evangelos Atmatzakis
Author: Nikitas Papasimakis ORCID iD
Author: Vassili Fedotov
Author: Guillaume Vienne

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