Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs

A metal&#x2013;dielectric&#x2013;metal (MDM) waveguide coupled with fixed height to length (<inline-formula> <tex-math notation="LaTeX">$b_{i}/ a_{i}={\text{0.8}}$</tex-math></inline-formula>) stubs is proposed in our work. Then, an obvious band-stop filteri...

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Main Authors: Z. H. He, Z. P. Zhou
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/8516304/
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author Z. H. He
Z. P. Zhou
author_facet Z. H. He
Z. P. Zhou
author_sort Z. H. He
collection DOAJ
description A metal&#x2013;dielectric&#x2013;metal (MDM) waveguide coupled with fixed height to length (<inline-formula> <tex-math notation="LaTeX">$b_{i}/ a_{i}={\text{0.8}}$</tex-math></inline-formula>) stubs is proposed in our work. Then, an obvious band-stop filtering phenomenon can be observed in MDM waveguide coupled with single fixed height to length stub. Interestingly, the MDM waveguide coupled with two fixed height to length stubs exhibits better band-stop filtering performance than that in a single fixed height to length stub coupled waveguide structures. The phase difference analysis and transmission line theory are established to discuss the transmission spectrum and the wide band-stop filtering phenomenon of our proposed structure. Inconceivably, the bandwidth of band-stop filtering can reach to 1750&#x00A0;nm through tuning structure parameters and the number of the fixed height to length stub. These results may provide great potential applications for plasmonic filtering devices.
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spelling doaj-art-045eec22ed0349cc91c60bd6d46ca9132025-08-20T02:41:55ZengIEEEIEEE Photonics Journal1943-06552018-01-011061810.1109/JPHOT.2018.28774318516304Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length StubsZ. H. He0https://orcid.org/0000-0003-3525-9170Z. P. Zhou1School of Physics and Electronic Information, Yan&#x0027;an University, Yan'an, ChinaSchool of Physics and Electronic Information, Yan&#x0027;an University, Yan'an, ChinaA metal&#x2013;dielectric&#x2013;metal (MDM) waveguide coupled with fixed height to length (<inline-formula> <tex-math notation="LaTeX">$b_{i}/ a_{i}={\text{0.8}}$</tex-math></inline-formula>) stubs is proposed in our work. Then, an obvious band-stop filtering phenomenon can be observed in MDM waveguide coupled with single fixed height to length stub. Interestingly, the MDM waveguide coupled with two fixed height to length stubs exhibits better band-stop filtering performance than that in a single fixed height to length stub coupled waveguide structures. The phase difference analysis and transmission line theory are established to discuss the transmission spectrum and the wide band-stop filtering phenomenon of our proposed structure. Inconceivably, the bandwidth of band-stop filtering can reach to 1750&#x00A0;nm through tuning structure parameters and the number of the fixed height to length stub. These results may provide great potential applications for plasmonic filtering devices.https://ieeexplore.ieee.org/document/8516304/Plasmonicstunable filterswaveguides
spellingShingle Z. H. He
Z. P. Zhou
Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs
IEEE Photonics Journal
Plasmonics
tunable filters
waveguides
title Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs
title_full Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs
title_fullStr Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs
title_full_unstemmed Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs
title_short Theoretically Analyze the Tunable Wide Band-Stop Filtering in Plasmonic Waveguide Coupled With Fixed Height to Length Stubs
title_sort theoretically analyze the tunable wide band stop filtering in plasmonic waveguide coupled with fixed height to length stubs
topic Plasmonics
tunable filters
waveguides
url https://ieeexplore.ieee.org/document/8516304/
work_keys_str_mv AT zhhe theoreticallyanalyzethetunablewidebandstopfilteringinplasmonicwaveguidecoupledwithfixedheighttolengthstubs
AT zpzhou theoreticallyanalyzethetunablewidebandstopfilteringinplasmonicwaveguidecoupledwithfixedheighttolengthstubs