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Tuning Fano resonances in a planar metamaterial

Tuning Fano resonances in a planar metamaterial
Tuning Fano resonances in a planar metamaterial
We demonstrate the tuning of Fano resonances in a symmetric planar metamaterial both experimentally and theoretically, on the basis of a unit cell consisting of two identical split ring resonators. The electromagnetic responses of the planar metamaterial to incident TE and TM waves are measured. By controlling the excitation of the Fano-type trapped-mode resonance via the angle of incidence, the resonance can be switched on/off and the resonance is red-shifted by up to 21%. Based on the finite element method, the field distributions are presented and a very sharp normal phase dispersion renders the response of the structure a metamaterial analog of classical electromagnetically-induced transparency (EIT). The simulated results are in good agreement with the measured ones. The switching feature of the trapped mode resonance in symmetric metamaterial can provide an easy approach to tuning the performance of metamaterial.
1000-3290
154101
Ran, Liu
d076ed67-4948-42f6-849d-68738b71f10e
Jin-Hui, Shi
ea060abd-90e5-4dc4-a815-d4e7eab19282
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Ran, Liu
d076ed67-4948-42f6-849d-68738b71f10e
Jin-Hui, Shi
ea060abd-90e5-4dc4-a815-d4e7eab19282
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Ran, Liu, Jin-Hui, Shi, Plum, Eric, Fedotov, Vassili and Zheludev, Nikolai (2012) Tuning Fano resonances in a planar metamaterial. Acta Physica Sinica, 61 (15), 154101. (doi:10.7498/aps.61.154101).

Record type: Article

Abstract

We demonstrate the tuning of Fano resonances in a symmetric planar metamaterial both experimentally and theoretically, on the basis of a unit cell consisting of two identical split ring resonators. The electromagnetic responses of the planar metamaterial to incident TE and TM waves are measured. By controlling the excitation of the Fano-type trapped-mode resonance via the angle of incidence, the resonance can be switched on/off and the resonance is red-shifted by up to 21%. Based on the finite element method, the field distributions are presented and a very sharp normal phase dispersion renders the response of the structure a metamaterial analog of classical electromagnetically-induced transparency (EIT). The simulated results are in good agreement with the measured ones. The switching feature of the trapped mode resonance in symmetric metamaterial can provide an easy approach to tuning the performance of metamaterial.

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Published date: 9 January 2012
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 357162
URI: https://eprints.soton.ac.uk/id/eprint/357162
ISSN: 1000-3290
PURE UUID: 7702485f-8bcf-42cd-bc2e-bff93565edf3
ORCID for Eric Plum: ORCID iD orcid.org/0000-0002-1552-1840
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 04 Oct 2013 13:33
Last modified: 16 Aug 2019 00:38

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Contributors

Author: Liu Ran
Author: Shi Jin-Hui
Author: Eric Plum ORCID iD
Author: Vassili Fedotov

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