Toroidal circular dichroism
Toroidal circular dichroism
We demonstrate that the induced toroidal dipole, represented by currents flowing on the surface of a torus, makes a distinct and indispensable contribution to circular dichroism. We show that toroidal circular dichroism supplements the well-known mechanism involving electric dipole and magnetic dipole transitions. We illustrate this with rigorous analysis of the experimentally measured, polarization-sensitive transmission spectra of an artificial metamaterial, constructed from elements of toroidal symmetry. We argue that toroidal circular dichroism shall be found in large biomolecules with elements of toroidal symmetry and should be taken into account in the interpretation of circular dichroism spectra of organics.
1-5
Raybould, T.A.
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Fedotov, V.A.
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Papasimakis, N.
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Kuprov, I.
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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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8 July 2016
Raybould, T.A.
cd82c867-4261-44fa-ac5e-b1e537b6958f
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Papasimakis, N.
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Kuprov, I.
bb07f28a-5038-4524-8146-e3fc8344c065
Youngs, I.J.
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Chen, W.T.
e1e9d172-77bb-47a4-a91e-57d017b381b4
Tsai, D.P.
ac188460-c076-41ee-bce4-7aa873f757e3
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Raybould, T.A., Fedotov, V.A., Papasimakis, N., Kuprov, I., Youngs, I.J., Chen, W.T., Tsai, D.P. and Zheludev, N.I.
(2016)
Toroidal circular dichroism.
Physical Review B, 94 (3), .
(doi:10.1103/PhysRevB.94.035119).
Abstract
We demonstrate that the induced toroidal dipole, represented by currents flowing on the surface of a torus, makes a distinct and indispensable contribution to circular dichroism. We show that toroidal circular dichroism supplements the well-known mechanism involving electric dipole and magnetic dipole transitions. We illustrate this with rigorous analysis of the experimentally measured, polarization-sensitive transmission spectra of an artificial metamaterial, constructed from elements of toroidal symmetry. We argue that toroidal circular dichroism shall be found in large biomolecules with elements of toroidal symmetry and should be taken into account in the interpretation of circular dichroism spectra of organics.
Text
TCD_PRB_MainText_1.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 6 June 2016
e-pub ahead of print date: 8 July 2016
Published date: 8 July 2016
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 396856
URI: http://eprints.soton.ac.uk/id/eprint/396856
ISSN: 1550-235X
PURE UUID: a456e0e1-ecd6-4e32-a8d6-1639603fcdd4
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Date deposited: 17 Jun 2016 16:04
Last modified: 15 Mar 2024 05:40
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Contributors
Author:
T.A. Raybould
Author:
V.A. Fedotov
Author:
I.J. Youngs
Author:
W.T. Chen
Author:
D.P. Tsai
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