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Asymmetric transmission through planar chiral photonic nanostructures

Asymmetric transmission through planar chiral photonic nanostructures
Asymmetric transmission through planar chiral photonic nanostructures
We report the first experimental observation of the intriguing novel phenomenon of asymmetric transmission in the optical part of the spectrum. In some aspects it resembles the non-reciprocal Faraday effect in magnetized media, but crucially does not require the presence of a magnetic field for its observation. It is radically different from conventional gyrotropy of three-dimensional chiral media (optical activity). The effect was observed in anisotropic planar chiral metallic nanostructures patterned on sub-wavelength scale. This excitation of enantiomerically sensitive plasmons in them manifests itself in an asymmetry of total transmission of circularly polarized light (700-1700 nm) propagating in opposite directions, also found numerically. Furthermore, we show that through chiral symmetry breaking, which allows the excitation of enantiomerically sensitive trapped modes, substantial control over the spectral localization of the effect can be achieved.
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Schwanecke, Alexander S.
2f6c06ac-00e6-4e9f-ae02-ba851d99e7f5
Fedotov, Vassili A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Chen, Yifang
fb868aa4-ecb4-4203-a0a8-88c2195a2bae
Khardikov, Vyacheslav V.
158ec544-6260-4a26-873e-4bdd8967bc49
Prosvirnin, Sergey L.
d4cd2e2e-ebcb-4e7c-a4d5-daf3391c45f6
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Schwanecke, Alexander S.
2f6c06ac-00e6-4e9f-ae02-ba851d99e7f5
Fedotov, Vassili A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Chen, Yifang
fb868aa4-ecb4-4203-a0a8-88c2195a2bae
Khardikov, Vyacheslav V.
158ec544-6260-4a26-873e-4bdd8967bc49
Prosvirnin, Sergey L.
d4cd2e2e-ebcb-4e7c-a4d5-daf3391c45f6

Plum, Eric, Schwanecke, Alexander S., Fedotov, Vassili A., Zheludev, Nikolay I., Chen, Yifang, Khardikov, Vyacheslav V. and Prosvirnin, Sergey L. (2008) Asymmetric transmission through planar chiral photonic nanostructures. Photon '08. 26 - 29 Aug 2008.

Record type: Conference or Workshop Item (Paper)

Abstract

We report the first experimental observation of the intriguing novel phenomenon of asymmetric transmission in the optical part of the spectrum. In some aspects it resembles the non-reciprocal Faraday effect in magnetized media, but crucially does not require the presence of a magnetic field for its observation. It is radically different from conventional gyrotropy of three-dimensional chiral media (optical activity). The effect was observed in anisotropic planar chiral metallic nanostructures patterned on sub-wavelength scale. This excitation of enantiomerically sensitive plasmons in them manifests itself in an asymmetry of total transmission of circularly polarized light (700-1700 nm) propagating in opposite directions, also found numerically. Furthermore, we show that through chiral symmetry breaking, which allows the excitation of enantiomerically sensitive trapped modes, substantial control over the spectral localization of the effect can be achieved.

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More information

Published date: August 2008
Venue - Dates: Photon '08, 2008-08-26 - 2008-08-29

Identifiers

Local EPrints ID: 63387
URI: https://eprints.soton.ac.uk/id/eprint/63387
PURE UUID: 9be76895-ce1f-4990-9d44-ef842cf47034
ORCID for Eric Plum: ORCID iD orcid.org/0000-0002-1552-1840
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 21 Oct 2008
Last modified: 14 Mar 2019 01:53

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Contributors

Author: Eric Plum ORCID iD
Author: Alexander S. Schwanecke
Author: Yifang Chen
Author: Vyacheslav V. Khardikov
Author: Sergey L. Prosvirnin

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