On the performance of an ENZ-based sensor using transmission line theory and effective medium approach

Pacheco-Peña, Víctor; Beruete Díaz, Miguel; Rodríguez Ulibarri, Pablo; Engheta, Nader

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On the performance of an ENZ-based sensor using transmission line theory and effective medium approach

dc.contributor.author	Pacheco-Peña, Víctor
dc.contributor.author	Beruete Díaz, Miguel
dc.contributor.author	Rodríguez Ulibarri, Pablo
dc.contributor.author	Engheta, Nader	es_ES
dc.contributor.department	Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren	eu
dc.contributor.department	Institute for Advanced Materials and Mathematics - INAMAT2	en
dc.contributor.department	Ingeniería Eléctrica, Electrónica y de Comunicación	es_ES
dc.date.accessioned	2019-05-01T18:16:59Z
dc.date.available	2019-05-01T18:16:59Z
dc.date.issued	2019
dc.description.abstract	In this paper we perform an in-depth theoretical studyofa sensing platform based on epsilon-near- zero (ENZ) metamaterials. The structure proposed for sensing is a narrow metallic waveguide channel. An equivalent circuit model is rigorouslydeduced using transmission line theory, considering several configurations for a dielectric body (analyte sample) inserted within the narrow channel, showing good agreement with results obtained from numerical simulations. The transmission line model is able to reproduce even the most peculiar details ofthe sensing platform response. Its performance is then evaluated byvarying systematically the size, position and permittivity ofthe analyte, and height ofthe ENZ channel. It is shown that the sensor is capable ofdetecting changes in the permittivity/ refractive index or position even with deeplysubwavelength analyte sizes (∼0.05λ0), giving a sensitivity up to 0.03m/RIU and a figure ofMerit∼25. The effective medium approach is evaluated by treating the inhomogeneous cross-section ofthe analyte as a transmission line filled with a homogeneous material.	en
dc.description.sponsorship	VP-P is supported by the Newcastle University (Newcastle University Research Fellow). MB acknowledges support by the Spanish Ministerio de Economía y Competitividad under contract TEC2014-51902-C2-2-R. PR-U was sponsored by Public University of Navarra via a predoctoral scholarship. NE acknowledges the partial support from the Vannevar Bush Faculty Fellowship program sponsored by the Basic Research Office of the Assistant Secretary of Defense for Research and Engineering and funded by the Office of Naval Research through grant N00014-16-1-2029.	en
dc.format.extent	13 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1088/1367-2630/ab116f
dc.identifier.issn	1367-2630 (Print)
dc.identifier.issn	1367-2630 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/32994
dc.language.iso	eng	en
dc.publisher	IOP Publishing	en
dc.relation.ispartof	New Journal of Physics, 21 (2019) 043056	en
dc.relation.projectID	info:eu-repo/grantAgreement/MINECO//TEC2014-51902-C2-2-R/ES/	en
dc.relation.publisherversion	https://doi.org/10.1088/1367-2630/ab116f
dc.rights	© 2019 The Author(s).Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.uri	https://creativecommons.org/licenses/by/3.0/
dc.subject	Epsilon-near-zero	en
dc.subject	Metamaterials	en
dc.subject	Sensing	en
dc.subject	Metamaterial sensor	en
dc.subject	Subwavelength sensing	en
dc.title	On the performance of an ENZ-based sensor using transmission line theory and effective medium approach	en
dc.type	Artículo / Artikulua	es
dc.type	info:eu-repo/semantics/article	en
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dc.type.version	info:eu-repo/semantics/publishedVersion	en
dspace.entity.type	Publication
relation.isAuthorOfPublication	7f0a4bcb-4ee3-4161-b562-8b0e0bfddd52
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relation.isAuthorOfPublication.latestForDiscovery	7f0a4bcb-4ee3-4161-b562-8b0e0bfddd52

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