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A Mechanical Sensor Using Hybridized Metamolecules

Hybridized metamaterials with collective mode resonance are usually applied as sensors. In this paper, we make use of one Mie-based hybridized metamolecule comprising of dielectric meta-atoms and an elastic bonding layer in order to detect the distances and applied forces. The hybridization induced...

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Detalles Bibliográficos
Autores principales: Li, Haohua, Wang, Xiaobo, Yang, Tian, Zhou, Ji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384969/
https://www.ncbi.nlm.nih.gov/pubmed/30717436
http://dx.doi.org/10.3390/ma12030466
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author Li, Haohua
Wang, Xiaobo
Yang, Tian
Zhou, Ji
author_facet Li, Haohua
Wang, Xiaobo
Yang, Tian
Zhou, Ji
author_sort Li, Haohua
collection PubMed
description Hybridized metamaterials with collective mode resonance are usually applied as sensors. In this paper, we make use of one Mie-based hybridized metamolecule comprising of dielectric meta-atoms and an elastic bonding layer in order to detect the distances and applied forces. The hybridization induced splitting results in two new collective resonance modes, of which the red-shifted mode behaves as the in-phase oscillation of two meta-atoms. Owing to the synergy of the oscillation, the in-phase resonance appears as a deep dip with a relatively high Q-factor and figure of merit (FoM). By exerting an external force, namely by adjusting the thickness of the bonding layer, the coupling strength of the metamolecule is changed. As the coupling strength increases, the first collective mode dip red-shifts increasingly toward lower frequencies. By fitting the relationship of the distance–frequency shift and the force–frequency shift, the metamolecule can be used as a sensor to characterize tiny displacement and a relatively wide range of applied force in civil engineering and biological engineering.
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spelling pubmed-63849692019-02-23 A Mechanical Sensor Using Hybridized Metamolecules Li, Haohua Wang, Xiaobo Yang, Tian Zhou, Ji Materials (Basel) Article Hybridized metamaterials with collective mode resonance are usually applied as sensors. In this paper, we make use of one Mie-based hybridized metamolecule comprising of dielectric meta-atoms and an elastic bonding layer in order to detect the distances and applied forces. The hybridization induced splitting results in two new collective resonance modes, of which the red-shifted mode behaves as the in-phase oscillation of two meta-atoms. Owing to the synergy of the oscillation, the in-phase resonance appears as a deep dip with a relatively high Q-factor and figure of merit (FoM). By exerting an external force, namely by adjusting the thickness of the bonding layer, the coupling strength of the metamolecule is changed. As the coupling strength increases, the first collective mode dip red-shifts increasingly toward lower frequencies. By fitting the relationship of the distance–frequency shift and the force–frequency shift, the metamolecule can be used as a sensor to characterize tiny displacement and a relatively wide range of applied force in civil engineering and biological engineering. MDPI 2019-02-03 /pmc/articles/PMC6384969/ /pubmed/30717436 http://dx.doi.org/10.3390/ma12030466 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Haohua
Wang, Xiaobo
Yang, Tian
Zhou, Ji
A Mechanical Sensor Using Hybridized Metamolecules
title A Mechanical Sensor Using Hybridized Metamolecules
title_full A Mechanical Sensor Using Hybridized Metamolecules
title_fullStr A Mechanical Sensor Using Hybridized Metamolecules
title_full_unstemmed A Mechanical Sensor Using Hybridized Metamolecules
title_short A Mechanical Sensor Using Hybridized Metamolecules
title_sort mechanical sensor using hybridized metamolecules
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384969/
https://www.ncbi.nlm.nih.gov/pubmed/30717436
http://dx.doi.org/10.3390/ma12030466
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