RT Journal Article
T1 Fibre-optic SPR sensor with a FBG interrogation scheme for readout enhancement
A1 Díaz Herrera, Natalia
A1 Viegas, Diana Catarino das Neves
A1 Jorge, Pedro A. S.
A1 Araújo, Francisco Manuel Moita
A1 Santos, Jose Luis
A1 Navarrete Fernández, María Cruz
A1 González Cano, Agustín
AB In this work a new configuration of a refractometric sensor for aqueous solutions based on the combination of surface plasmon resonance (SPR) with fibre Bragg gratings (FBG) is presented. Two FBGs are selected having reflection maxima in each side of the plasmon resonance peak. These FBGs enable a different processing scheme for the information provided by the SPR transducer. This improved interrogation method increases the sensitivity and resolution of the sensor compared with those obtained with the usual method of tracking the spectral transmittance minimum and makes the system performance independent of optical source power fluctuations. The experimental results obtained with a double-layer uniform-waist tapered fibre show the feasibility of this approach and its applicability in SPR-based biosensors that must face very exigent measuring conditions.
PB Elsevier Science S A
SN 0925-4005
YR 2010
FD 2010-01-29
LK https://hdl.handle.net/20.500.14352/44114
UL https://hdl.handle.net/20.500.14352/44114
LA eng
NO © 2009 Elsevier B.V.This work has been partially supported by Spanish Government research project NESTOR, ref. CTM2004-03899; Comunidad de Madrid research project FUTURSEN, ref. S-0505/AMB-0374 and by Proyecto de Investigación Santander/Complutense, ref. PR34/07-15886. This work was supported partially by the Portuguese Government – Fundação para a Ciência e Tecnologia (FCT) through the grant SFRH/BD/30086/2006. N. Díaz-Herrera is thankful for the grant within the program ‘Becas Internacionales Universidad Complutense/Empresa Flores Valles 2008’.
NO Spanish Government
NO Comunidad de Madrid
NO Proyecto de Investigación Santander/Complutense
NO Portuguese Government – Fundação para a Ciência e Tecnologia (FCT)
NO Universidad Complutense de Madrid
NO Flores Valles
DS Docta Complutense
RD 9 abr 2025