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Toroidal plasmonic metamaterial

Toroidal plasmonic metamaterial
Toroidal plasmonic metamaterial
We report on the development of toroidal metamaterials operating in the near-to-far IR spectral range. The toroidal metamaterials is a recently demonstrated novel class of artificial media with the resonant macroscopic response determined by a peculiar and previously disputed fundamental type of microscopic dipolar excitations, the toroidal dipole. Taking into account limitations of the most suited fabrication techniques (namely Sandia's projection lithography SAMPL and NTU's e-beam lithography with precise alignment technique) and using realistic data for the optical properties of the constituent dielectrics and metals, we have come up with a substantially optimised design of such metamaterials capable of producing dominant toroidal response at IR frequencies. We have also investigated the possibility of enhancing toroidal response by incorporating gain into the metamaterials' structure.
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Chen, W.T.
e1e9d172-77bb-47a4-a91e-57d017b381b4
Huang, Y.-W.
d2dd76e8-eb3a-49b2-868d-a0a43782e282
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Tsai, D.P.
ac188460-c076-41ee-bce4-7aa873f757e3
Burckel, D.B.
e181b5d0-6663-465f-b5eb-bc175e414350
Brener, I.
c5158c44-6358-4f9b-8ec5-ed7ea1cc1d66
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Chen, W.T.
e1e9d172-77bb-47a4-a91e-57d017b381b4
Huang, Y.-W.
d2dd76e8-eb3a-49b2-868d-a0a43782e282
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Tsai, D.P.
ac188460-c076-41ee-bce4-7aa873f757e3
Burckel, D.B.
e181b5d0-6663-465f-b5eb-bc175e414350
Brener, I.
c5158c44-6358-4f9b-8ec5-ed7ea1cc1d66
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Savinov, Vassili, Chen, W.T., Huang, Y.-W., Fedotov, V.A., Tsai, D.P., Burckel, D.B., Brener, I. and Zheludev, N.I. (2012) Toroidal plasmonic metamaterial. SPIE Photonics Europe 2012, Belgium. 16 - 19 Apr 2012.

Record type: Conference or Workshop Item (Poster)

Abstract

We report on the development of toroidal metamaterials operating in the near-to-far IR spectral range. The toroidal metamaterials is a recently demonstrated novel class of artificial media with the resonant macroscopic response determined by a peculiar and previously disputed fundamental type of microscopic dipolar excitations, the toroidal dipole. Taking into account limitations of the most suited fabrication techniques (namely Sandia's projection lithography SAMPL and NTU's e-beam lithography with precise alignment technique) and using realistic data for the optical properties of the constituent dielectrics and metals, we have come up with a substantially optimised design of such metamaterials capable of producing dominant toroidal response at IR frequencies. We have also investigated the possibility of enhancing toroidal response by incorporating gain into the metamaterials' structure.

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More information

e-pub ahead of print date: 2012
Additional Information: 8423-77
Venue - Dates: SPIE Photonics Europe 2012, Belgium, 2012-04-16 - 2012-04-19
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 376454
URI: https://eprints.soton.ac.uk/id/eprint/376454
PURE UUID: 6708b20c-93b9-49a0-92d8-6278d6b91497
ORCID for Vassili Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 22 Apr 2015 15:49
Last modified: 26 Jul 2019 00:37

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Contributors

Author: Vassili Savinov ORCID iD
Author: W.T. Chen
Author: Y.-W. Huang
Author: V.A. Fedotov
Author: D.P. Tsai
Author: D.B. Burckel
Author: I. Brener
Author: N.I. Zheludev ORCID iD

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