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Design of plasmonic toroidal metamaterials at optical frequencies

Design of plasmonic toroidal metamaterials at optical frequencies
Design of plasmonic toroidal metamaterials at optical frequencies
Toroidal multipoles are the subject of growing interest because of their unusual electromagnetic properties different from the electric and magnetic multipoles. In this paper, we present two new related classes of plasmonic metamaterial composed of purposely arranged of four U-shaped split ring resonators (SRRs) that show profound resonant toroidal responses at optical frequencies. The toroidal and magnetic responses were investigated by the finite-element simulations. A phenomenon of reversed toroidal responses at higher and lower resonant frequencies has also been reported between this two related metamaterials which results from the electric and magnetic dipoles interaction. Finally, we propose a physical model based on coupled LC circuits to quantitatively analyze the coupled system of the plasmonic toroidal metamaterials.
1094-4087
1760-1768
Huang, Yao-Wei
f4ed558b-509d-476a-b114-8eb1beec2f02
Chen, Wei Ting
bb86b3ab-cf10-4319-8b7f-ec4a8f1a3c98
Wu, Pin Chieh
1d63065a-5d41-4599-bca2-23bbf05ae42f
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Ho, You Zhe
105211a1-ccf9-41a7-8019-2335573f9e13
Chau, Yuan-Fong
b18b62ae-6a56-4748-9a14-d57b91e88184
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779
Huang, Yao-Wei
f4ed558b-509d-476a-b114-8eb1beec2f02
Chen, Wei Ting
bb86b3ab-cf10-4319-8b7f-ec4a8f1a3c98
Wu, Pin Chieh
1d63065a-5d41-4599-bca2-23bbf05ae42f
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Ho, You Zhe
105211a1-ccf9-41a7-8019-2335573f9e13
Chau, Yuan-Fong
b18b62ae-6a56-4748-9a14-d57b91e88184
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779

Huang, Yao-Wei, Chen, Wei Ting, Wu, Pin Chieh, Fedotov, Vassili, Savinov, Vassili, Ho, You Zhe, Chau, Yuan-Fong, Zheludev, Nikolay I. and Tsai, Din Ping (2012) Design of plasmonic toroidal metamaterials at optical frequencies. Optics Express, 20 (2), 1760-1768. (doi:10.1364/OE.20.001760).

Record type: Article

Abstract

Toroidal multipoles are the subject of growing interest because of their unusual electromagnetic properties different from the electric and magnetic multipoles. In this paper, we present two new related classes of plasmonic metamaterial composed of purposely arranged of four U-shaped split ring resonators (SRRs) that show profound resonant toroidal responses at optical frequencies. The toroidal and magnetic responses were investigated by the finite-element simulations. A phenomenon of reversed toroidal responses at higher and lower resonant frequencies has also been reported between this two related metamaterials which results from the electric and magnetic dipoles interaction. Finally, we propose a physical model based on coupled LC circuits to quantitatively analyze the coupled system of the plasmonic toroidal metamaterials.

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Published date: 11 January 2012
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 301210
URI: https://eprints.soton.ac.uk/id/eprint/301210
ISSN: 1094-4087
PURE UUID: f697e82a-d137-47fc-8461-501c37d936bb
ORCID for Vassili Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

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Date deposited: 29 Feb 2012 14:52
Last modified: 26 Nov 2019 02:03

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Contributors

Author: Yao-Wei Huang
Author: Wei Ting Chen
Author: Pin Chieh Wu
Author: Vassili Fedotov
Author: Vassili Savinov ORCID iD
Author: You Zhe Ho
Author: Yuan-Fong Chau
Author: Din Ping Tsai

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