Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/107228
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dc.contributor.authorGrajales, Danielen_US
dc.contributor.authorFernández Gavela, Adriánen_US
dc.contributor.authorDomínguez, Carlosen_US
dc.contributor.authorSendra Sendra, José Ramónen_US
dc.contributor.authorLechuga, Laura Men_US
dc.date.accessioned2021-05-18T08:55:54Z-
dc.date.available2021-05-18T08:55:54Z-
dc.date.issued2019en_US
dc.identifier.issn2515-7647en_US
dc.identifier.urihttp://hdl.handle.net/10553/107228-
dc.description.abstractThere is still the need for a compact and cost-effective solution for efficient light in-coupling in integrated waveguides employed in photonic biosensors, especially when these waveguides are of submicron dimensions and operate at visible wavelengths. The employment of a vertically stacked taper with a larger input area is proposed to meet this need. The design of the taper is divided into two stages: in the first stage, light is guided downwards by two vertically stacked tapers; in the second stage, an inverted taper directly confines the light inside the waveguide. The design parameters are optimized using commercial software, obtaining a total theoretical light coupling efficiency of 72.25%. The taper is manufactured using SU-8 polymer as the main material, employing standard photolithography techniques at wafer level. After characterization, the results show the practicality of the taper when coupling light from macrometric sources to nanometric waveguides, obtaining an experimental coupling efficiency of 55%. With this vertical taper, a compact, easy-to-couple and cost-effective solution is achieved for waveguide-based biosensors operating at visible wavelengths, opening the way for a truly portable point-of-care biosensor for low-cost and label-free diagnostics.en_US
dc.languageengen_US
dc.relation.ispartofJPhys photonicsen_US
dc.sourceJPhys photonics [ISSN 2515-7647], v. 1(2), (Marzo 2019)en_US
dc.subject3325 Tecnología de las telecomunicacionesen_US
dc.titleLow-cost vertical taper for highly efficient light in-coupling in bimodal nanointerferometric waveguide biosensorsen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typearticleen_US
dc.identifier.doi10.1088/2515-7647/aafebben_US
dc.identifier.issue2-
dc.investigacionIngeniería y Arquitecturaen_US
dc.type2Artículoen_US
dc.description.observacionesThis research was funded by Acción Estratégica Economía y Sociedad Digital (AEESD)-Ministerio de Industria, Energía y Turismo (MINETUR). The ICN2 is funded by the CERCA programme/Generalitat de Catalunya. The ICN2 is supported by the Severo Ochoa programme of the Spanish Ministry of Economy, Industry and Competitiveness (MINECO, grant SEV-2013-0295). This work has made use of the Spanish ICTS Network MICRONANOFABS partially supported by MEINCOM. D. Grajales acknowledges CONACYT (Mexican Council of Science and Technology) CVU 397275, contract SICOB 218103.en_US
dc.utils.revisionen_US
dc.identifier.ulpgcen_US
dc.contributor.buulpgcBU-TELen_US
item.fulltextCon texto completo-
item.grantfulltextopen-
crisitem.author.deptDepartamento de Ingeniería Electrónica y Automática-
crisitem.author.orcid0000-0001-5385-792X-
crisitem.author.fullNameSendra Sendra, José Ramón-
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