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Title: Plasmonic anapole metamaterial for refractive index sensing
Authors: Yao, Jin
Ou, Jun-Yu
Savinov, Vassili
Chen, Mu Ku
Kuo, Hsin Yu
Zheludev, Nikolay I.
Tsai, Din Ping
Keywords: Science::Physics
Issue Date: 2022
Source: Yao, J., Ou, J., Savinov, V., Chen, M. K., Kuo, H. Y., Zheludev, N. I. & Tsai, D. P. (2022). Plasmonic anapole metamaterial for refractive index sensing. PhotoniX, 3(1).
Project: MOE2016-T3-1-006
Journal: PhotoniX
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.
ISSN: 2662-1991
DOI: 10.1186/s43074-022-00069-x
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies
Rights: © The Author(s) 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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