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Plasmonic anapole metamaterial for refractive index sensing

Plasmonic anapole metamaterial for refractive index sensing
Plasmonic anapole metamaterial for refractive index sensing

Electromagnetic anapole mode is a nonradiative state of light originating from the deconstructive interference of radiation of the oscillating electric and toroidal dipole moments. The high quality anapole-related resonances can be used in enhancing nonlinear electromagnetic properties of materials and in sensor applications. In this work, we experimentally demonstrate plasmonic anapole metamaterial sensor of environmental refractive index in the optical part of the spectrum. Our results show that the sensor exhibits high sensitivity to the ambient refractive index at the level of 330 nm/RIU and noise floor of 8.7 × 10 -5 RIU. This work will pave the way for applications of anapole metamaterials in biosensing and spectroscopy.

Electromagnetic anapole, Plasmonic metamaterial, Refractive index sensor, Toroidal dipole, Vertical split-ring resonator
2662-1991
Yao, Jin
d0e505b8-46a9-4c2a-a278-35ff4f85f7da
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Chen, Mu Ku
7e685629-2ed6-4159-b358-77c106a26c4d
Kuo, Hsin Yu
86fc31d8-6b81-4948-a5e6-bfd9da29062a
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Tsai, Din Ping
a8d03877-49f9-4376-abef-468800938efe
Yao, Jin
d0e505b8-46a9-4c2a-a278-35ff4f85f7da
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Savinov, Vassili
147c7954-4636-4438-a305-cd78539f7c0a
Chen, Mu Ku
7e685629-2ed6-4159-b358-77c106a26c4d
Kuo, Hsin Yu
86fc31d8-6b81-4948-a5e6-bfd9da29062a
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Tsai, Din Ping
a8d03877-49f9-4376-abef-468800938efe

Yao, Jin, Ou, Jun-Yu, Savinov, Vassili, Chen, Mu Ku, Kuo, Hsin Yu, Zheludev, Nikolay and Tsai, Din Ping (2022) Plasmonic anapole metamaterial for refractive index sensing. PhotoniX, 3 (1), [23]. (doi:10.1186/s43074-022-00069-x).

Record type: Article

Abstract

Electromagnetic anapole mode is a nonradiative state of light originating from the deconstructive interference of radiation of the oscillating electric and toroidal dipole moments. The high quality anapole-related resonances can be used in enhancing nonlinear electromagnetic properties of materials and in sensor applications. In this work, we experimentally demonstrate plasmonic anapole metamaterial sensor of environmental refractive index in the optical part of the spectrum. Our results show that the sensor exhibits high sensitivity to the ambient refractive index at the level of 330 nm/RIU and noise floor of 8.7 × 10 -5 RIU. This work will pave the way for applications of anapole metamaterials in biosensing and spectroscopy.

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s43074-022-00069-x - Version of Record
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Accepted/In Press date: 16 September 2022
Published date: 14 October 2022
Additional Information: Funding Information: The authors acknowledge support from University of Southampton, Nanyang Technological University, and City University of Hong Kong. Funding Information: This work is supported by the UK Engineering and Physical Science Research Council (grants EP/M009122/1 and EP/T02643X/1), the Royal Society (grant IEC/R3/170092), the European Research Council (Advanced Grant No. FLEET-786851), the Singapore Ministry of Education (N.I.Z.; grant MOE2016-T3-1-006), the University Grants Committee / Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. AoE/P-502/20 and GRF Project: 15303521), the Shenzhen Science and Technology Innovation Commission (Grant No. SGDX2019081623281169), the Department of Science and Technology of Guangdong Province (2020B1515120073), and the City University of Hong Kong (Grant No. 9380131). Publisher Copyright: © 2022, The Author(s).
Keywords: Electromagnetic anapole, Plasmonic metamaterial, Refractive index sensor, Toroidal dipole, Vertical split-ring resonator
Learn more about Zepler Institute for Photonics and Nanoelectronics research Learn more about Institute for Life Sciences research

Identifiers

Local EPrints ID: 472188
URI: http://eprints.soton.ac.uk/id/eprint/472188
DOI: doi:10.1186/s43074-022-00069-x
ISSN: 2662-1991
PURE UUID: aa77ca2e-8bdf-4342-9fdf-0f3ae2a83732
ORCID for Jun-Yu Ou: ORCID iD orcid.org/0000-0001-8028-6130
ORCID for Vassili Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for Nikolay Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 29 Nov 2022 17:31
Last modified: 17 Mar 2024 03:25

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Contributors

Author: Jin Yao
Author: Jun-Yu Ou ORCID iD
Author: Vassili Savinov ORCID iD
Author: Mu Ku Chen
Author: Hsin Yu Kuo
Author: Nikolay Zheludev ORCID iD
Author: Din Ping Tsai

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