Optical fibre refractive index sensor using surface plasmon resonance and a TiO2 coating obtained by sol-gel process

Alain Trouillet; C. Veillas; Jean-Pierre Goure; Henri Gagnaire

doi:10.1117/12.309652

18 June 1998 Optical fibre refractive index sensor using surface plasmon resonance and a TiO₂ coating obtained by sol-gel process

Alain Trouillet, C. Veillas, Jean-Pierre Goure, Henri Gagnaire

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Proceedings Volume 3483, European Workshop on Optical Fibre Sensors; (1998) https://doi.org/10.1117/12.309652
Event: European Workshop on Optical Fibre Sensors, 1998, Peebles, Scotland, United Kingdom

Abstract

A simple fibre sensor for continuous monitoring of refractive index variations of liquid mixtures is described. The principle of this sensor, based on the excitation of a surface plasmon at a metal/dielectric interface, has been descibed in previous articles. In this paper it is shown that this set-up, which uses monochromatic incident light, can work as a refractive index variation sensor either in a range between 1.36 and 1.40 when using a single silver layer or in a range shifted down to 1.33 when coating silver by a thin TiO2 adaptative layer obtained by sol-gel process.

Citation Download Citation

Alain Trouillet, C. Veillas, Jean-Pierre Goure, and Henri Gagnaire "Optical fibre refractive index sensor using surface plasmon resonance and a TiO₂ coating obtained by sol-gel process", Proc. SPIE 3483, European Workshop on Optical Fibre Sensors, (18 June 1998); https://doi.org/10.1117/12.309652

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