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Real-time measurement of refractive index using 3D-printed optofluidic fiber sensor

2022-12-01Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências Químicas
datacite.subject.fosCiências Naturais::Ciências Físicas
dc.contributor.authorLeça, João M.
dc.contributor.authorMagalhães, Yannis
dc.contributor.authorAntunes, Paulo
dc.contributor.authorPereira, Vanda
dc.contributor.authorFerreira, Marta S.
dc.contributor.authorLeça, João Micael
dc.date.accessioned2025-07-25T14:42:54Z
dc.date.available2025-07-25T14:42:54Z
dc.date.issued2022-12-01
dc.description.abstract<jats:p>This work describes a 3D-printed optofluidic fiber sensor to measure refractive index in real time, combining a microfluidic system with an optical fiber extrinsic Fabry–Perot interferometer. The microfluidic chip platform was developed for this purpose through 3D printing. The Fabry–Perot cavity was incorporated in the microfluidic chip perpendicularly to the sample flow, which was of approximately 3.7 µL/s. The optofluidic fiber sensor platform coupled with a low-cost optical power meter detector was characterized using different concentrations of glucose solutions. In the linear regression analysis, the optical power shift was correlated with the refractive index and a sensitivity of −86.6 dB/RIU (r2 = 0.996) was obtained. Good results were obtained in terms of stability with a maximum standard deviation of 0.03 dB and a sensor resolution of 5.2 × 10−4 RIU. The feasibility of the optofluidic fiber sensor for dynamic analyses of refractive index with low sample usage was confirmed through real-time measurements.</jats:p>eng
dc.identifier.citationLeça, J.M.; Magalhães, Y.; Antunes, P.; Pereira, V.; Ferreira, M.S. Real-Time Measurement of Refractive Index Using 3D-Printed Optofluidic Fiber Sensor. Sensors 2022, 22, 9377. https://doi.org/10.3390/s22239377
dc.identifier.doi10.3390/s22239377
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10400.13/7334
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationNovel optical fibre sensor designs for AROMA compounds detection
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationCEECIND/00777/2018
dc.relation.ispartofSensors
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectOptofluidics
dc.subjectFabry–Perot
dc.subjectRefractive index
dc.subjectReal-time measurement
dc.subject.
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleReal-time measurement of refractive index using 3D-printed optofluidic fiber sensoreng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleNovel optical fibre sensor designs for AROMA compounds detection
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FEEI-EEE%2F31568%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50025%2F2020/PT
oaire.citation.issue23
oaire.citation.titleSensors
oaire.citation.volume22
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLeça
person.givenNameJoão Micael
person.identifier1083569
person.identifier.ciencia-id6213-EB73-1A9F
person.identifier.orcid0000-0003-1704-6745
person.identifier.scopus-author-id55979990800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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