78297 20200113145618.0 doi 10.1016/j.saa.2018.02.044 sideral 105283 ART-2018-105283 eng Galatu¿, R. Distributed fluorescent optical fiber proximity sensor: Towards a proof of concept 2018 Access copy available to the general public Unrestricted Fluorescent fibers are optical fibers which emit light as a response to an incident phenomenon, usually an incident light. Operation depends on the doping dyes, which determine specific fluorescence and optical characteristics useful in the development of optical sensors. In this work we propose a low-cost distributed proximity sensor implemented using a red fluorescent fiber, to provide a security option for a surface plasmon resonance system. Operation of the proposed sensor relies on having the incident illumination intensity varied by the presence or absence of an obstacle in the vicinity of the sensing element. This will influence the radiated fluorescence accordingly. The proposed setup for the implementation of the optical proximity sensor assumes having a high brightness LED deployed for axial fiber illumination and a blue LED for side illumination. Electronic processing then accounts for gain and digitization. Measurement results of the prototype validate the proposed concept. info:eu-repo/grantAgreement/EUR/COST-Action/MP1401-MPNS info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.931 2018 SPECTROSCOPY 9 / 41 = 0.22 2018 Q1 T1 0.574 2018 Analytical Chemistry 2018 Q2 Spectroscopy 2018 Q2 Instrumentation 2018 Q2 Atomic and Molecular Physics, and Optics 2018 Q2 info:eu-repo/semantics/other info:eu-repo/semantics/acceptedVersion Faragó, P. Miluski, P. (orcid)0000-0001-8431-0003 Valles, J.A. Universidad de Zaragoza 2002 647 Universidad de Zaragoza Dpto. Física Aplicada Área Óptica 198 (2018), 7-18 Spectrochim. acta, Part A: Mol. biomol. spectrosc. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 1386-1425 488963 http://zaguan.unizar.es/record/78297/files/texto_completo.pdf Postprint 48362 http://zaguan.unizar.es/record/78297/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:78297 articulos driver 2020-01-13-14:54:29 ARTICLE