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Proceedings Paper

Optical fibre refractive index sensor using surface plasmon resonance and a TiO2 coating obtained by sol-gel process
Author(s): Alain Trouillet; C. Veillas; Jean-Pierre Goure; Henri Gagnaire
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Paper 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.

Paper Details

Date Published: 18 June 1998
PDF: 5 pages
Proc. SPIE 3483, European Workshop on Optical Fibre Sensors, (18 June 1998); doi: 10.1117/12.309652
Show Author Affiliations
Alain Trouillet, Univ. de Saint-Etienne-CNRS (France)
C. Veillas, Univ. de Saint-Etienne-CNRS (France)
Jean-Pierre Goure, Univ. de Saint-Etienne-CNRS (France)
Henri Gagnaire, Univ. de Saint-Etienne-CNRS (France)


Published in SPIE Proceedings Vol. 3483:
European Workshop on Optical Fibre Sensors
Brian Culshaw; Julian D. C. Jones, Editor(s)

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