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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2015
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.
e1e9d172-77bb-47a4-a91e-57d017b381b4
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, Munich, Munich, Germany.
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.
More information
Published date: 2015
Venue - Dates:
CLEO/Europe-EQEC '15, Munich, Munich, Germany, 2015-06-21 - 2015-06-25
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 379132
URI: http://eprints.soton.ac.uk/id/eprint/379132
PURE UUID: 9a973a12-6396-4288-8365-f2011d5ba75f
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Date deposited: 15 Jul 2015 16:26
Last modified: 15 Mar 2024 03:28
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Contributors
Author:
T.A. Raybould
Author:
V. Fedotov
Author:
N. Papasimakis
Author:
I.J. Youngs
Author:
W.T. Chen
Author:
D.P. Tsai
Author:
N.I. Zheludev
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