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Giant gyrotropy due to electromagnetic-field coupling in a bilayered chiral structure

Giant gyrotropy due to electromagnetic-field coupling in a bilayered chiral structure
Giant gyrotropy due to electromagnetic-field coupling in a bilayered chiral structure
We report experimental evidence that electromagnetic coupling between physically separated planar metal patterns located in parallel planes provides for extremely strong polarization rotatory power if one pattern is twisted with respect to the other, creating a chiral object. In terms of a rotary power per sample thickness equal to one wavelength, the bilayered structure rotates 5 orders of magnitude stronger than a gyrotropic crystal of quartz in the visible spectrum.
0031-9007
177401-[4pp]
Rogacheva, A.V.
07e3c6ce-4e4d-4660-87fd-b04e7061b3ee
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Schwanecke, A.S.
ee362335-ee3e-4c26-8035-5c397e10b274
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Rogacheva, A.V.
07e3c6ce-4e4d-4660-87fd-b04e7061b3ee
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Schwanecke, A.S.
ee362335-ee3e-4c26-8035-5c397e10b274
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Rogacheva, A.V., Fedotov, V.A., Schwanecke, A.S. and Zheludev, N.I. (2006) Giant gyrotropy due to electromagnetic-field coupling in a bilayered chiral structure. Physical Review Letters, 97 (17), 177401-[4pp]. (doi:10.1103/PhysRevLett.97.177401).

Record type: Article

Abstract

We report experimental evidence that electromagnetic coupling between physically separated planar metal patterns located in parallel planes provides for extremely strong polarization rotatory power if one pattern is twisted with respect to the other, creating a chiral object. In terms of a rotary power per sample thickness equal to one wavelength, the bilayered structure rotates 5 orders of magnitude stronger than a gyrotropic crystal of quartz in the visible spectrum.

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Published date: 27 October 2006

Identifiers

Local EPrints ID: 48319
URI: https://eprints.soton.ac.uk/id/eprint/48319
ISSN: 0031-9007
PURE UUID: 7b971bbb-b216-49d2-ba83-345a7b70279e
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

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Date deposited: 11 Sep 2007
Last modified: 03 Dec 2019 02:03

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Contributors

Author: A.V. Rogacheva
Author: V.A. Fedotov
Author: A.S. Schwanecke
Author: N.I. Zheludev ORCID iD

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