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Metamaterial polarization spectral filter: isolated transmission line at any prescribed wavelength

Metamaterial polarization spectral filter: isolated transmission line at any prescribed wavelength
Metamaterial polarization spectral filter: isolated transmission line at any prescribed wavelength
Spectral filters are key components of telecommunication, imaging, sensor and spectroscopic devices. Optical filters are achieved though engineering of interferences in a complex multilayered structure, or by exploiting dispersion of absorption or anisotropy in natural media. In the microwave and terahertz regions frequency selective surfaces are used to provide spectral selectivity. While being extremely good in some of their characteristics, narrow-band interference filters suffer from a small acceptance angle, filters based on absorption or anisotropy depend on the availability of natural media to provide functionality at the required wavelength and frequency selective surfaces often show multiple and wide transmission bands. Here we demonstrate that a narrow-band spectral filter with a ripples-free isolated transmission peak and wide acceptance angle can be constructed exploiting polarization properties of a metal film patterned on the subwavelength scale. Its transmission band can be engineered to be anywhere from the visible to microwaves.
birefringence, metamaterials, optical filters
0003-6951
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Plum, E.
50761a26-2982-40df-9153-7aecc4226eb5
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Plum, E.
50761a26-2982-40df-9153-7aecc4226eb5
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25

Zheludev, N.I., Plum, E. and Fedotov, V.A. (2011) Metamaterial polarization spectral filter: isolated transmission line at any prescribed wavelength. Applied Physics Letters, 99 (17). (doi:10.1063/1.3656286).

Record type: Article

Abstract

Spectral filters are key components of telecommunication, imaging, sensor and spectroscopic devices. Optical filters are achieved though engineering of interferences in a complex multilayered structure, or by exploiting dispersion of absorption or anisotropy in natural media. In the microwave and terahertz regions frequency selective surfaces are used to provide spectral selectivity. While being extremely good in some of their characteristics, narrow-band interference filters suffer from a small acceptance angle, filters based on absorption or anisotropy depend on the availability of natural media to provide functionality at the required wavelength and frequency selective surfaces often show multiple and wide transmission bands. Here we demonstrate that a narrow-band spectral filter with a ripples-free isolated transmission peak and wide acceptance angle can be constructed exploiting polarization properties of a metal film patterned on the subwavelength scale. Its transmission band can be engineered to be anywhere from the visible to microwaves.

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Published date: 24 October 2011
Keywords: birefringence, metamaterials, optical filters
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 205587
URI: https://eprints.soton.ac.uk/id/eprint/205587
ISSN: 0003-6951
PURE UUID: 27ce97d0-ac65-4614-91ce-9351cf41222f
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636
ORCID for E. Plum: ORCID iD orcid.org/0000-0002-1552-1840

Catalogue record

Date deposited: 12 Dec 2011 15:34
Last modified: 03 Dec 2019 02:03

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Contributors

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

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