Publication:
High sensitivity lossy-mode resonance refractometer using low refractive index PFA planar waveguide

Date

2023

Director

Publisher

Elsevier
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión publicada / Argitaratu den bertsioa

Project identifier

AEI//PID2019-106231RB-100
AEI//PID2019-106070RB-100
MCIN//PTQ2018-010221
Gobierno de Navarra//0011-1365-2022-000241
Gobierno de Navarra//PC058-059

Abstract

In this work a new strategy to improve the sensitivity of refractometers based on lossy-mode resonances has been proved. The proximity of the PFA (tetrafluoroethylene-perfluoro polymer) substrate refractive index to that of water has permitted to implement an optical refractometer with a sensitivity of 41,034 nm per refractive index unit (nm/RIU) for refractive indices ranging from 1.3318 to 1.3347. The work is supported with both theoretical and experimental results. This high sensitivity can be used for the development of LMR based chemical sensors and biosensors, where a low limit of detection is required, with the additional advantage of a simple disposable planar configuration.

Description

Keywords

Optical sensor, Planar waveguide, Lossy mode resonance, Thin-film, Refractometer

Department

Ingeniería Eléctrica, Electrónica y de Comunicación / Institute of Smart Cities - ISC / Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren

Faculty/School

Degree

Doctorate program

item.page.cita

Dominguez, I., Corres, J., Matias, I. R., Ascorbe, J., & Del Villar, I. (2023). High sensitivity lossy-mode resonance refractometer using low refractive index PFA planar waveguide. Optics & Laser Technology, 162, 109235. https://doi.org/10.1016/j.optlastec.2023.109235

item.page.rights

© 2023 The Author(s). This is an open access article under the CC BY-NC-ND license.

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