Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide

A Mach-Zehnder interferometer based on a plasmonic channel waveguide is proposed for refractive index sensing. The structure, with a small physical footprint of 20 × 120 μm(2), achieved a high figure of merit of 294. The cut-off frequency behaviour in the plasmonic channel waveguide resulted in a fl...

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Detalles Bibliográficos
Autores principales: Lee, Da Eun, Lee, Young Jin, Shin, Eunso, Kwon, Soon-Hong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5713100/
https://www.ncbi.nlm.nih.gov/pubmed/29120381
http://dx.doi.org/10.3390/s17112584
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author Lee, Da Eun
Lee, Young Jin
Shin, Eunso
Kwon, Soon-Hong
author_facet Lee, Da Eun
Lee, Young Jin
Shin, Eunso
Kwon, Soon-Hong
author_sort Lee, Da Eun
collection PubMed
description A Mach-Zehnder interferometer based on a plasmonic channel waveguide is proposed for refractive index sensing. The structure, with a small physical footprint of 20 × 120 μm(2), achieved a high figure of merit of 294. The cut-off frequency behaviour in the plasmonic channel waveguide resulted in a flat dispersion curve, which induces a 1.8 times larger change of the propagation constant for the given refractive index change compared with previously reported results.
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spelling pubmed-57131002017-12-07 Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide Lee, Da Eun Lee, Young Jin Shin, Eunso Kwon, Soon-Hong Sensors (Basel) Article A Mach-Zehnder interferometer based on a plasmonic channel waveguide is proposed for refractive index sensing. The structure, with a small physical footprint of 20 × 120 μm(2), achieved a high figure of merit of 294. The cut-off frequency behaviour in the plasmonic channel waveguide resulted in a flat dispersion curve, which induces a 1.8 times larger change of the propagation constant for the given refractive index change compared with previously reported results. MDPI 2017-11-09 /pmc/articles/PMC5713100/ /pubmed/29120381 http://dx.doi.org/10.3390/s17112584 Text en © 2017 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
Lee, Da Eun
Lee, Young Jin
Shin, Eunso
Kwon, Soon-Hong
Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide
title Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide
title_full Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide
title_fullStr Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide
title_full_unstemmed Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide
title_short Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide
title_sort mach-zehnder interferometer refractive index sensor based on a plasmonic channel waveguide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5713100/
https://www.ncbi.nlm.nih.gov/pubmed/29120381
http://dx.doi.org/10.3390/s17112584
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AT leeyoungjin machzehnderinterferometerrefractiveindexsensorbasedonaplasmonicchannelwaveguide
AT shineunso machzehnderinterferometerrefractiveindexsensorbasedonaplasmonicchannelwaveguide
AT kwonsoonhong machzehnderinterferometerrefractiveindexsensorbasedonaplasmonicchannelwaveguide

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