Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform

Metamaterials provide a good platform for biochemical sensing due to its strong field localization at nanoscale. In this work, we show that electric and magnetic resonant modes in split-ring-resonator (SRR) can be efficiently excited under unpolarized light illumination when the SRRs are arranged in...

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Autores principales: Tobing, Landobasa Y. M., Tjahjana, Liliana, Zhang, Dao Hua, Zhang, Qing, Xiong, Qihua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3743072/
https://www.ncbi.nlm.nih.gov/pubmed/23942416
http://dx.doi.org/10.1038/srep02437
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author Tobing, Landobasa Y. M.
Tjahjana, Liliana
Zhang, Dao Hua
Zhang, Qing
Xiong, Qihua
author_facet Tobing, Landobasa Y. M.
Tjahjana, Liliana
Zhang, Dao Hua
Zhang, Qing
Xiong, Qihua
author_sort Tobing, Landobasa Y. M.
collection PubMed
description Metamaterials provide a good platform for biochemical sensing due to its strong field localization at nanoscale. In this work, we show that electric and magnetic resonant modes in split-ring-resonator (SRR) can be efficiently excited under unpolarized light illumination when the SRRs are arranged in fourfold rotationally symmetric lattice configuration. The fabrication and characterization of deep subwavelength (~λ/15) gold-based SRR structures with resonator size as small as ~ 60 nm are reported with magnetic resonances in Vis-NIR spectrum range. The feasibility for sensing is demonstrated with refractive index sensitivity as high as ~ 636 nm/RIU.
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spelling pubmed-37430722013-08-14 Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform Tobing, Landobasa Y. M. Tjahjana, Liliana Zhang, Dao Hua Zhang, Qing Xiong, Qihua Sci Rep Article Metamaterials provide a good platform for biochemical sensing due to its strong field localization at nanoscale. In this work, we show that electric and magnetic resonant modes in split-ring-resonator (SRR) can be efficiently excited under unpolarized light illumination when the SRRs are arranged in fourfold rotationally symmetric lattice configuration. The fabrication and characterization of deep subwavelength (~λ/15) gold-based SRR structures with resonator size as small as ~ 60 nm are reported with magnetic resonances in Vis-NIR spectrum range. The feasibility for sensing is demonstrated with refractive index sensitivity as high as ~ 636 nm/RIU. Nature Publishing Group 2013-08-14 /pmc/articles/PMC3743072/ /pubmed/23942416 http://dx.doi.org/10.1038/srep02437 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/3.0/ This work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/
spellingShingle Article
Tobing, Landobasa Y. M.
Tjahjana, Liliana
Zhang, Dao Hua
Zhang, Qing
Xiong, Qihua
Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
title Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
title_full Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
title_fullStr Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
title_full_unstemmed Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
title_short Deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
title_sort deep subwavelength fourfold rotationally symmetric split-ring-resonator metamaterials for highly sensitive and robust biosensing platform
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3743072/
https://www.ncbi.nlm.nih.gov/pubmed/23942416
http://dx.doi.org/10.1038/srep02437
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