Multipole resonance and Vernier effect in compact and flexible plasmonic structures

Abstract Spoof surface plasmons in corrugated metal surfaces allow tight field confinement and guiding even at low frequencies and are promising for compact microwave photonic devices. Here, we use metal-ink printing on flexible substrates to construct compact spoof plasmon resonators. We clearly ob...

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Autores principales:	Yeonsoo Lim, Soo-Chan An, Hoon Yeub Jeong, Thi Hai-Yen Nguyen, Gangil Byun, Young Chul Jun
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d9a640293adc44cdb99d983494efd2bc
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spelling	oai:doaj.org-article:d9a640293adc44cdb99d983494efd2bc2021-11-28T12:19:28ZMultipole resonance and Vernier effect in compact and flexible plasmonic structures10.1038/s41598-021-02333-92045-2322https://doaj.org/article/d9a640293adc44cdb99d983494efd2bc2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02333-9https://doaj.org/toc/2045-2322Abstract Spoof surface plasmons in corrugated metal surfaces allow tight field confinement and guiding even at low frequencies and are promising for compact microwave photonic devices. Here, we use metal-ink printing on flexible substrates to construct compact spoof plasmon resonators. We clearly observe multipole resonances in the microwave frequencies and demonstrate that they are still maintained even under significant bending. Moreover, by combining two resonators of slightly different sizes, we demonstrate spectral filtering via the Vernier effect. We selectively address a target higher-order resonance while suppressing the other modes. Finally, we investigate the index-sensing capability of printed plasmonic resonators. In the Vernier structure, we can control the resonance amplitude and frequency by adjusting a resonance overlap between two coupled resonators. The transmission amplitude can be maximized at a target refractive index, and this can provide more functionalities and increased design flexibility. The metal-ink printing of microwave photonic structures can be applied to various flexible devices. Therefore, we expect that the compact, flexible plasmonic structures demonstrated in this study may be useful for highly functional elements that can enable tight field confinement and manipulation.Yeonsoo LimSoo-Chan AnHoon Yeub JeongThi Hai-Yen NguyenGangil ByunYoung Chul JunNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yeonsoo Lim Soo-Chan An Hoon Yeub Jeong Thi Hai-Yen Nguyen Gangil Byun Young Chul Jun Multipole resonance and Vernier effect in compact and flexible plasmonic structures
description	Abstract Spoof surface plasmons in corrugated metal surfaces allow tight field confinement and guiding even at low frequencies and are promising for compact microwave photonic devices. Here, we use metal-ink printing on flexible substrates to construct compact spoof plasmon resonators. We clearly observe multipole resonances in the microwave frequencies and demonstrate that they are still maintained even under significant bending. Moreover, by combining two resonators of slightly different sizes, we demonstrate spectral filtering via the Vernier effect. We selectively address a target higher-order resonance while suppressing the other modes. Finally, we investigate the index-sensing capability of printed plasmonic resonators. In the Vernier structure, we can control the resonance amplitude and frequency by adjusting a resonance overlap between two coupled resonators. The transmission amplitude can be maximized at a target refractive index, and this can provide more functionalities and increased design flexibility. The metal-ink printing of microwave photonic structures can be applied to various flexible devices. Therefore, we expect that the compact, flexible plasmonic structures demonstrated in this study may be useful for highly functional elements that can enable tight field confinement and manipulation.
format	article
author	Yeonsoo Lim Soo-Chan An Hoon Yeub Jeong Thi Hai-Yen Nguyen Gangil Byun Young Chul Jun
author_facet	Yeonsoo Lim Soo-Chan An Hoon Yeub Jeong Thi Hai-Yen Nguyen Gangil Byun Young Chul Jun
author_sort	Yeonsoo Lim
title	Multipole resonance and Vernier effect in compact and flexible plasmonic structures
title_short	Multipole resonance and Vernier effect in compact and flexible plasmonic structures
title_full	Multipole resonance and Vernier effect in compact and flexible plasmonic structures
title_fullStr	Multipole resonance and Vernier effect in compact and flexible plasmonic structures
title_full_unstemmed	Multipole resonance and Vernier effect in compact and flexible plasmonic structures
title_sort	multipole resonance and vernier effect in compact and flexible plasmonic structures
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d9a640293adc44cdb99d983494efd2bc
work_keys_str_mv	AT yeonsoolim multipoleresonanceandverniereffectincompactandflexibleplasmonicstructures AT soochanan multipoleresonanceandverniereffectincompactandflexibleplasmonicstructures AT hoonyeubjeong multipoleresonanceandverniereffectincompactandflexibleplasmonicstructures AT thihaiyennguyen multipoleresonanceandverniereffectincompactandflexibleplasmonicstructures AT gangilbyun multipoleresonanceandverniereffectincompactandflexibleplasmonicstructures AT youngchuljun multipoleresonanceandverniereffectincompactandflexibleplasmonicstructures
_version_	1718408106260561920

Multipole resonance and Vernier effect in compact and flexible plasmonic structures

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