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Tunable chirality in photonic metamaterials

Tunable chirality in photonic metamaterials
Tunable chirality in photonic metamaterials
We introduce the concept of extrinsic chirality and show that polarization phenomena of optical activity, circular dichroism and asymmetric transmission that are normally associated with three- and two- dimensional molecular chirality could be seen in nonchiral planar metamaterial structures if the left-right asymmetry is provided by the mutual orientation of the light wave and the structure. We also demonstrate that polarization effects of extrinsic chirality can be easily controlled by the tilt angle at which the light wave enters metamaterial and are strongly influenced by the environment leading to a new opportunity for creating tunable polarization devices.
Plum, E.
50761a26-2982-40df-9153-7aecc4226eb5
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Liu, X.-X.
0634e928-4096-4a2f-8b97-470ce3ebeaae
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Plum, E.
50761a26-2982-40df-9153-7aecc4226eb5
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Liu, X.-X.
0634e928-4096-4a2f-8b97-470ce3ebeaae
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Plum, E., Fedotov, V.A., Liu, X.-X. and Zheludev, N.I. (2009) Tunable chirality in photonic metamaterials. SPIE Metamaterials: Fundamentals and Applications II, San Diego, CA. 02 - 06 Aug 2009.

Record type: Conference or Workshop Item (Paper)

Abstract

We introduce the concept of extrinsic chirality and show that polarization phenomena of optical activity, circular dichroism and asymmetric transmission that are normally associated with three- and two- dimensional molecular chirality could be seen in nonchiral planar metamaterial structures if the left-right asymmetry is provided by the mutual orientation of the light wave and the structure. We also demonstrate that polarization effects of extrinsic chirality can be easily controlled by the tilt angle at which the light wave enters metamaterial and are strongly influenced by the environment leading to a new opportunity for creating tunable polarization devices.

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More information

Published date: 2009
Venue - Dates: SPIE Metamaterials: Fundamentals and Applications II, San Diego, CA, 2009-08-02 - 2009-08-06

Identifiers

Local EPrints ID: 70954
URI: https://eprints.soton.ac.uk/id/eprint/70954
PURE UUID: a83b5eea-d645-4e8b-8b75-4932cd269e45
ORCID for E. Plum: ORCID iD orcid.org/0000-0002-1552-1840
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 05 Dec 2019 01:39

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Contributors

Author: E. Plum ORCID iD
Author: V.A. Fedotov
Author: X.-X. Liu
Author: N.I. Zheludev ORCID iD

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