Tunable optical fiber pH sensors based on TE and TM Lossy Mode Resonances (LMRs)
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1016/j.snb.2016.03.024
Resumen
In this paper, a high sensitivity optical fiber pH sensor based on lossy mode resonance (LMR) generated
with transversal electric (TE) and transversal magnetic (TM) polarized light is presented. Poly(allylamine
hydrochloride) (PAH)/poly(acrylic acid) (PAA) polymeric thin-films fabricated onto side-polished Dshaped optical fibers are used as pH-sensitive as well as LMR supporting coatings. The a ...
[++]
In this paper, a high sensitivity optical fiber pH sensor based on lossy mode resonance (LMR) generated
with transversal electric (TE) and transversal magnetic (TM) polarized light is presented. Poly(allylamine
hydrochloride) (PAH)/poly(acrylic acid) (PAA) polymeric thin-films fabricated onto side-polished Dshaped optical fibers are used as pH-sensitive as well as LMR supporting coatings. The adequate selection
of the pH-sensitive coating fabrication parameters enables to obtain devices working at different pH
regions. Two devices have been obtained in order to measure pH from 4.0 to 5.0 and from 7.0 to 8.0
respectively. Obtained optical fiber pH sensors based on TE and TM LMRs showed a maximum sensitivity
of 69 nm/pH, which means a resolution of ∼0.0008 pH units by using a conventional communications
Optical Spectrum Analyzer (OSA) with 0.06 nm resolution. [--]
Materias
Optical fiber,
Lossy mode resonance,
D-shaped,
Layer-by-layer nano-assembly,
Sensors,
pH
Editor
Elsevier
Publicado en
Sensors and Actuators B 231 (2016) 484-490
Departamento
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC /
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
This work was supported by the Spanish Economy and
Competitiveness Ministry-Feder TEC2013-43679-R and Fundación
CAN2015-70221 Research Grants