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New enantiomeric phenomena in toroidal media

New enantiomeric phenomena in toroidal media
New enantiomeric phenomena in toroidal media
Optical activity is a phenomenon ubiquitous across natural and artificial structures and is generally understood in terms of the coupling between electric and magnetic dipoles [1]. Usually, this dipole approximation is sufficient to explain optical activity in most media. In metamaterials however, engineering of the structure allows for designs where a conventional multipole (electric and magnetic dipole) response is suppressed in favour of more exotic excitations typically excluded from the standard multipole expansion. Here, we report on the first computational study of optical activity in a metamaterial that cannot be attributed to conventional multipoles, and can only be accounted for by the inclusion of the toroidal dipole.
Raybould, T.A.
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Fedotov, V.
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Papasimakis, N.
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Youngs, I.J.
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Chen, W.T.
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Tsai, D.P.
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Zheludev, N.I.
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Raybould, T.A.
a3aee700-e8b7-4605-ac17-33cb2d498a70
Fedotov, V.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Papasimakis, N.
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Youngs, I.J.
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Chen, W.T.
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Tsai, D.P.
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Zheludev, N.I.
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Raybould, T.A., Fedotov, V., Papasimakis, N., Youngs, I.J., Chen, W.T., Tsai, D.P. and Zheludev, N.I. (2015) New enantiomeric phenomena in toroidal media. CLEO/Europe-EQEC '15. 21 - 25 Jun 2015. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Optical activity is a phenomenon ubiquitous across natural and artificial structures and is generally understood in terms of the coupling between electric and magnetic dipoles [1]. Usually, this dipole approximation is sufficient to explain optical activity in most media. In metamaterials however, engineering of the structure allows for designs where a conventional multipole (electric and magnetic dipole) response is suppressed in favour of more exotic excitations typically excluded from the standard multipole expansion. Here, we report on the first computational study of optical activity in a metamaterial that cannot be attributed to conventional multipoles, and can only be accounted for by the inclusion of the toroidal dipole.

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Published date: 2015
Venue - Dates: CLEO/Europe-EQEC '15, 2015-06-21 - 2015-06-25
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 379132
URI: https://eprints.soton.ac.uk/id/eprint/379132
PURE UUID: 9a973a12-6396-4288-8365-f2011d5ba75f
ORCID for N. Papasimakis: ORCID iD orcid.org/0000-0002-6347-6466
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 15 Jul 2015 16:26
Last modified: 30 Nov 2018 01:37

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Contributors

Author: T.A. Raybould
Author: V. Fedotov
Author: N. Papasimakis ORCID iD
Author: I.J. Youngs
Author: W.T. Chen
Author: D.P. Tsai
Author: N.I. Zheludev ORCID iD

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