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Optical magnetism in all-dielectric metamaterials

Optical magnetism in all-dielectric metamaterials
Optical magnetism in all-dielectric metamaterials
For more than ten years now, significant effort has been focused on the engineering of metamaterials to achieve artificial optical magnetism, most notably for applications in negative refractive media. However, the challenges associated with the fact that the metals conventionally employed as the foundation of photonic metamaterials suffer from high inherent energy dissipation due to resistive losses remain. It has been shown recently that dielectric structures can provide optical magnetic responses based on Mie/cavity resonances [1] and here we experimentally demonstrate that near-infrared magnetic resonances, analogous to the 'trapped mode' response familiar to metallic asymmetric split rings [2], can be realized in all-dielectric metamaterials via coupling between pairs of closely spaced, geometrically dissimilar nano-bars.
IEEE
Zhang, J.
722d2564-f8ae-40f1-b1e1-07896b67a0d8
Ou, J-Y.
3fb703e3-b222-46d2-b4ee-75f296d9d64d
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zhang, J.
722d2564-f8ae-40f1-b1e1-07896b67a0d8
Ou, J-Y.
3fb703e3-b222-46d2-b4ee-75f296d9d64d
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Zhang, J., Ou, J-Y., MacDonald, K.F. and Zheludev, N.I. (2014) Optical magnetism in all-dielectric metamaterials. In 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC. IEEE. 1 pp . (doi:10.1109/CLEOE-IQEC.2013.6800956).

Record type: Conference or Workshop Item (Paper)

Abstract

For more than ten years now, significant effort has been focused on the engineering of metamaterials to achieve artificial optical magnetism, most notably for applications in negative refractive media. However, the challenges associated with the fact that the metals conventionally employed as the foundation of photonic metamaterials suffer from high inherent energy dissipation due to resistive losses remain. It has been shown recently that dielectric structures can provide optical magnetic responses based on Mie/cavity resonances [1] and here we experimentally demonstrate that near-infrared magnetic resonances, analogous to the 'trapped mode' response familiar to metallic asymmetric split rings [2], can be realized in all-dielectric metamaterials via coupling between pairs of closely spaced, geometrically dissimilar nano-bars.

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e-pub ahead of print date: May 2013
Published date: 21 April 2014
Additional Information: CE5.2
Venue - Dates: 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, Munich, Germany, 2013-05-12 - 2013-05-16
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 368804
URI: https://eprints.soton.ac.uk/id/eprint/368804
PURE UUID: 3530c637-9dbc-4a1a-93d0-1eafe1885df5
ORCID for J-Y. Ou: ORCID iD orcid.org/0000-0001-8028-6130
ORCID for K.F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

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Date deposited: 17 Sep 2014 15:47
Last modified: 27 Aug 2019 00:38

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Contributors

Author: J. Zhang
Author: J-Y. Ou ORCID iD
Author: K.F. MacDonald ORCID iD
Author: N.I. Zheludev ORCID iD

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