Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency

Abstract Plasmonic spectrum filtering devices based on metallic nanostructures have attracted wide attention due to their good reliability, ease of fabrication, and wideband tunability. However, the presence of thick substrate significantly limits the structure’s longitudinal size for further optoel...

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Autores principales:	Yuzhang Liang, Si Zhang, Xun Cao, Yanqing Lu, Ting Xu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d8078f0d03c64e828ba1f0695ee38bfb
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spelling	oai:doaj.org-article:d8078f0d03c64e828ba1f0695ee38bfb2021-12-02T11:52:32ZFree-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency10.1038/s41598-017-04540-92045-2322https://doaj.org/article/d8078f0d03c64e828ba1f0695ee38bfb2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04540-9https://doaj.org/toc/2045-2322Abstract Plasmonic spectrum filtering devices based on metallic nanostructures have attracted wide attention due to their good reliability, ease of fabrication, and wideband tunability. However, the presence of thick substrate significantly limits the structure’s longitudinal size for further optoelectronic integration and reduces the devices’ performance. Here we propose and demonstrate an ultra-thin plasmonic bandpass filter based on free-standing periodic metal-dielectric-metal stack geometry working in the near-infrared wavelength range. The coupling between free-space electromagnetic waves and spatially confined plasmonic modes in the designed structure is systematically investigated. As demonstrated in the calculation and experiment, the free-standing plasmonic filters have more than 90% transmission efficiency and superior angular tolerance. The experimental results are in good agreement with the theoretical calculations. These artificial nanostructured filtering devices may find potential applications in the extremely compact device architectures.Yuzhang LiangSi ZhangXun CaoYanqing LuTing XuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuzhang Liang Si Zhang Xun Cao Yanqing Lu Ting Xu Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
description	Abstract Plasmonic spectrum filtering devices based on metallic nanostructures have attracted wide attention due to their good reliability, ease of fabrication, and wideband tunability. However, the presence of thick substrate significantly limits the structure’s longitudinal size for further optoelectronic integration and reduces the devices’ performance. Here we propose and demonstrate an ultra-thin plasmonic bandpass filter based on free-standing periodic metal-dielectric-metal stack geometry working in the near-infrared wavelength range. The coupling between free-space electromagnetic waves and spatially confined plasmonic modes in the designed structure is systematically investigated. As demonstrated in the calculation and experiment, the free-standing plasmonic filters have more than 90% transmission efficiency and superior angular tolerance. The experimental results are in good agreement with the theoretical calculations. These artificial nanostructured filtering devices may find potential applications in the extremely compact device architectures.
format	article
author	Yuzhang Liang Si Zhang Xun Cao Yanqing Lu Ting Xu
author_facet	Yuzhang Liang Si Zhang Xun Cao Yanqing Lu Ting Xu
author_sort	Yuzhang Liang
title	Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
title_short	Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
title_full	Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
title_fullStr	Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
title_full_unstemmed	Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
title_sort	free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d8078f0d03c64e828ba1f0695ee38bfb
work_keys_str_mv	AT yuzhangliang freestandingplasmonicmetaldielectricmetalbandpassfilterwithhightransmissionefficiency AT sizhang freestandingplasmonicmetaldielectricmetalbandpassfilterwithhightransmissionefficiency AT xuncao freestandingplasmonicmetaldielectricmetalbandpassfilterwithhightransmissionefficiency AT yanqinglu freestandingplasmonicmetaldielectricmetalbandpassfilterwithhightransmissionefficiency AT tingxu freestandingplasmonicmetaldielectricmetalbandpassfilterwithhightransmissionefficiency
_version_	1718395014128599040

Free-standing plasmonic metal-dielectric-metal bandpass filter with high transmission efficiency

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