Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap

Abstract We proposed surface-plasmon-coupled optical force sensors based on metal–insulator–metal (MIM) metamaterials with a movable air gap as an insulator layer. The MIM metamaterial was composed of an air gap sandwiched by a metal nanodot array and a metal diaphragm, the resonant wavelength of wh...

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Autores principales:	Taiyu Okatani, Shota Sekiguchi, Kazuhiro Hane, Yoshiaki Kanamori
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3320a45acd1f4a56818642cb12ccb540
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spelling	oai:doaj.org-article:3320a45acd1f4a56818642cb12ccb5402021-12-02T19:12:33ZSurface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap10.1038/s41598-020-71825-x2045-2322https://doaj.org/article/3320a45acd1f4a56818642cb12ccb5402020-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-71825-xhttps://doaj.org/toc/2045-2322Abstract We proposed surface-plasmon-coupled optical force sensors based on metal–insulator–metal (MIM) metamaterials with a movable air gap as an insulator layer. The MIM metamaterial was composed of an air gap sandwiched by a metal nanodot array and a metal diaphragm, the resonant wavelength of which was red-shifted when the air gap was narrowed by applying a normal force. We designed and fabricated a prototype of the proposed sensor and confirmed that the MIM metamaterial could be used as a force sensor with larger sensitivity than a force sensor based on Fabry-Pérot interferometer (FPI).Taiyu OkataniShota SekiguchiKazuhiro HaneYoshiaki KanamoriNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-6 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Taiyu Okatani Shota Sekiguchi Kazuhiro Hane Yoshiaki Kanamori Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
description	Abstract We proposed surface-plasmon-coupled optical force sensors based on metal–insulator–metal (MIM) metamaterials with a movable air gap as an insulator layer. The MIM metamaterial was composed of an air gap sandwiched by a metal nanodot array and a metal diaphragm, the resonant wavelength of which was red-shifted when the air gap was narrowed by applying a normal force. We designed and fabricated a prototype of the proposed sensor and confirmed that the MIM metamaterial could be used as a force sensor with larger sensitivity than a force sensor based on Fabry-Pérot interferometer (FPI).
format	article
author	Taiyu Okatani Shota Sekiguchi Kazuhiro Hane Yoshiaki Kanamori
author_facet	Taiyu Okatani Shota Sekiguchi Kazuhiro Hane Yoshiaki Kanamori
author_sort	Taiyu Okatani
title	Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
title_short	Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
title_full	Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
title_fullStr	Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
title_full_unstemmed	Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
title_sort	surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/3320a45acd1f4a56818642cb12ccb540
work_keys_str_mv	AT taiyuokatani surfaceplasmoncoupledopticalforcesensorsbasedonmetalinsulatormetalmetamaterialswithmovableairgap AT shotasekiguchi surfaceplasmoncoupledopticalforcesensorsbasedonmetalinsulatormetalmetamaterialswithmovableairgap AT kazuhirohane surfaceplasmoncoupledopticalforcesensorsbasedonmetalinsulatormetalmetamaterialswithmovableairgap AT yoshiakikanamori surfaceplasmoncoupledopticalforcesensorsbasedonmetalinsulatormetalmetamaterialswithmovableairgap
_version_	1718377042891767808

Surface-plasmon-coupled optical force sensors based on metal–insulator–metal metamaterials with movable air gap

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