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
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Schwanecke, Alexander S.
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Fedotov, Vassili A.
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Zheludev, Nikolay I.
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Chen, Yifang
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Khardikov, Vyacheslav V.
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Prosvirnin, Sergey L.
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August 2008
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, Edinburgh, United Kingdom.
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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Published date: August 2008
Venue - Dates:
Photon 08, Edinburgh, United Kingdom, 2008-08-26 - 2008-08-29
Identifiers
Local EPrints ID: 63387
URI: http://eprints.soton.ac.uk/id/eprint/63387
PURE UUID: 9be76895-ce1f-4990-9d44-ef842cf47034
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Date deposited: 21 Oct 2008
Last modified: 06 Mar 2024 02:44
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Contributors
Author:
Eric Plum
Author:
Alexander S. Schwanecke
Author:
Vassili A. Fedotov
Author:
Nikolay I. Zheludev
Author:
Yifang Chen
Author:
Vyacheslav V. Khardikov
Author:
Sergey L. Prosvirnin
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