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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 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.

bimetallic, Faraday rotation, magnetoplasmonics, metamaterials, metasurfaces
199-206
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
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
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
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Atmatzakis, Evangelos, Papasimakis, Nikitas, Fedotov, Vassili, Vienne, Guillaume and Zheludev, Nikolay I. (2018) Magneto-optical response in bimetallic metamaterials. Nanophotonics, 7 (1), 199-206. (doi:10.1515/nanoph-2016-0162).

Record type: Article

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 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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Accepted/In Press date: 7 December 2016
e-pub ahead of print date: 22 July 2017
Published date: 1 January 2018
Additional Information: Funding Information: Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton SO17 1BJ, UK, e-mail: n.papasimakis@soton.ac.uk Evangelos Atmatzakis and Vassili Fedotov: Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton SO17 1BJ, UK Guillaume Vienne: Data Storage Institute, Agency for Science, Technology and Research (A*STAR), Singapore 117608, Singapore; and School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore Nikolay I. Zheludev: Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton SO17 1BJ, UK; and The Photonics Institute and Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore 637371, Singapore. Acknowledgments: the authors would like to thank Anibal L. Gonzalez Oyarce for his advice on micromagnetic simulations and F. Javier Garcia de Abajo for numerous fruitful discussions. The authors acknowledge the support of the MOE Singapore (grant MOE2011-T3-1-005), the UK’s Engineering and Physical Sciences Research Council (grants EP/G060363/1, EP/M008797/1), and the Leverhulme Trust. The data from this paper can be obtained from the University of Southampton ePrints research repository: http:// dx.doi.org/10.5258/SOTON/405057.
Keywords: bimetallic, Faraday rotation, magnetoplasmonics, metamaterials, metasurfaces

Identifiers

Local EPrints ID: 482926
URI: http://eprints.soton.ac.uk/id/eprint/482926
PURE UUID: f792a236-410a-4e0c-bb16-4991664f7ea9
ORCID for Nikitas Papasimakis: ORCID iD orcid.org/0000-0002-6347-6466
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 17 Oct 2023 16:47
Last modified: 18 Mar 2024 03:07

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Contributors

Author: Evangelos Atmatzakis
Author: Nikitas Papasimakis ORCID iD
Author: Vassili Fedotov
Author: Guillaume Vienne
Author: Nikolay I. Zheludev ORCID iD

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