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dc.creatorPacheco-Peña, Víctores_ES
dc.creatorBeruete Díaz, Migueles_ES
dc.creatorRodríguez Ulibarri, Pabloes_ES
dc.creatorEngheta, Naderes_ES
dc.identifier.issn1367-2630 (Print)
dc.identifier.issn1367-2630 (Electronic)
dc.description.abstractIn 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.sponsorshipVP-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.extent13 p.
dc.publisherIOP Publishingen
dc.relation.ispartofNew Journal of Physics, 21 (2019) 043056en
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.subjectMetamaterial sensoren
dc.subjectSubwavelength sensingen
dc.titleOn the performance of an ENZ-based sensor using transmission line theory and effective medium approachen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko eta Elektronikoa eta Komunikazio Sailaeu
dc.contributor.departmentUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. InaMat - Institute for Advanced Materialses_ES
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión publicada / Argitaratu den bertsioaes

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© 2019 The Author(s).Original content from this
work may be used under
the terms of the Creative
Commons Attribution 3.0
Except where otherwise noted, this item's license is described as © 2019 The Author(s).Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.