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Plasmon coupling in vertical split-ring resonator metamolecules

Plasmon coupling in vertical split-ring resonator metamolecules
Plasmon coupling in vertical split-ring resonator metamolecules
The past decade has seen a number of interesting designs proposed and implemented to generate artificial magnetism at optical frequencies using plasmonic metamaterials, but owing to the planar configurations of typically fabricated metamolecules that make up the metamaterials, the magnetic response is mainly driven by the electric field of the incident electromagnetic wave. We recently fabricated vertical split-ring resonators (VSRRs) which behave as magnetic metamolecules sensitive to both incident electric and magnetic fields with stronger induced magnetic dipole moment upon excitation in comparison to planar SRRs. The fabrication technique enabled us to study the plasmon coupling between VSRRs that stand up side by side where the coupling strength can be precisely controlled by varying the gap in between. The resulting wide tuning range of these resonance modes offers the possibility of developing frequency selective functional devices such as sensors and filters based on plasmon coupling with high sensitivity.
1-5
Wu, Pin Chieh
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Hsu, Wei-Lun
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Chen, Wei Ting
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Huang, Yao-Wei
f4ed558b-509d-476a-b114-8eb1beec2f02
Liao, Chun Yen
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Liu, Ai Qun
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Zheludev, Nikolay I.
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Sun, Greg
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Tsai, Din Ping
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Wu, Pin Chieh
1d63065a-5d41-4599-bca2-23bbf05ae42f
Hsu, Wei-Lun
4f9007dc-ec4a-41db-88f4-ad0699d960e6
Chen, Wei Ting
bb86b3ab-cf10-4319-8b7f-ec4a8f1a3c98
Huang, Yao-Wei
f4ed558b-509d-476a-b114-8eb1beec2f02
Liao, Chun Yen
ace43f43-2ea7-4e57-9555-58555103859d
Liu, Ai Qun
408a2bbb-a924-41b9-ae75-54997e861c1e
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Sun, Greg
b5ac4a68-f0ae-4ab5-82a1-40c7402fdf37
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779

Wu, Pin Chieh, Hsu, Wei-Lun, Chen, Wei Ting, Huang, Yao-Wei, Liao, Chun Yen, Liu, Ai Qun, Zheludev, Nikolay I., Sun, Greg and Tsai, Din Ping (2015) Plasmon coupling in vertical split-ring resonator metamolecules. Scientific Reports, 5 (9726), 1-5. (doi:10.1038/srep09726).

Record type: Article

Abstract

The past decade has seen a number of interesting designs proposed and implemented to generate artificial magnetism at optical frequencies using plasmonic metamaterials, but owing to the planar configurations of typically fabricated metamolecules that make up the metamaterials, the magnetic response is mainly driven by the electric field of the incident electromagnetic wave. We recently fabricated vertical split-ring resonators (VSRRs) which behave as magnetic metamolecules sensitive to both incident electric and magnetic fields with stronger induced magnetic dipole moment upon excitation in comparison to planar SRRs. The fabrication technique enabled us to study the plasmon coupling between VSRRs that stand up side by side where the coupling strength can be precisely controlled by varying the gap in between. The resulting wide tuning range of these resonance modes offers the possibility of developing frequency selective functional devices such as sensors and filters based on plasmon coupling with high sensitivity.

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More information

Accepted/In Press date: 16 March 2015
Published date: 5 June 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 377981
URI: https://eprints.soton.ac.uk/id/eprint/377981
PURE UUID: 86cbe770-579d-4547-bfd2-0331ad9b65ad
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 16 Jun 2015 10:33
Last modified: 03 Dec 2019 02:03

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