Socorro Leránoz, Abián BentorDel Villar, IgnacioCorres Sanz, Jesús MaríaArregui San Martín, Francisco JavierMatías Maestro, Ignacio2024-01-082024-01-082012Socorro, A.B., Del Villar, I., Corres, J.M., Arregui, F.J., Matias, I.R. (2012) Tapered Single-Mode Optical Fiber pH Sensor Based on Lossy Mode Resonances Generated by a Polymeric Thin-Film. IEEE Sensors Journal, 12(8), 2598-2603. https://doi.org/10.1109/JSEN.2012.2198464.1530-437X10.1109/JSEN.2012.2198464https://academica-e.unavarra.es/handle/2454/46971Lossy mode resonances can be generated with certain polymeric nanostructures, such as those obtained with a multilayered assembly of poly(allylamine hydrochloride) and poly (acrylic acid). This coating is adsorbed by the electrostatic self assembly technique onto a tapered single-mode optical fiber, in order to evaluate its performance when detecting pH. According to the results reported in this work, the high sensitivity given by a tapering process in a single-mode optical fiber is increased by the effect of this kind of electromagnetic resonances. Particularly, in a pH range from 4.0 to 6.0 the overall wavelength shift of this sensor reaches 200 nm and the transmission at the resonance wavelengths can fall down to -50 dB. These data provide results which can be taken into account to detect pH with high accuracy.application/pdfeng© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.Polymeric thin-filmsLossy mode resonancesOptical fiber sensorsTapered single mode fibersinfo:eu-repo/semantics/article2024-01-08info:eu-repo/semantics/openAccess