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Proceedings Paper

Analysis of phase interrogation of SPR fiber optic sensors with characteristics tailored by the application of different metal-dielectric overlays
Author(s): H. Moayyed; I. T. Leite; L. Coelho; J. L. Santos; A. Guerreiro; D. Viegas
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Paper Abstract

Optical fiber sensors based on the phenomenon of plasmonic resonance can be interrogated applying different methods, the most common one being the spectral approach where the measurand information is derived from the reading of the wavelength resonance dip. In principle, a far better performance can be achieved considering the reading of the phase of the light at a specific wavelength located within the spectral plasmonic resonance. This approach is investigated in this work for fiber optic SPR sensors with overlays which are combinations of metallic and dielectric thin films, permitting not only to tune the wavelength of the SPR resonance but also the sensitivity associated with the phase interrogation of the sensors.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575E (2 June 2014); doi: 10.1117/12.2059768
Show Author Affiliations
H. Moayyed, INESC TEC (Portugal)
Univ. do Porto (Portugal)
I. T. Leite, INESC TEC (Portugal)
Univ. do Porto (Portugal)
L. Coelho, INESC TEC (Portugal)
Univ. do Porto (Portugal)
J. L. Santos, INESC TEC (Portugal)
Univ. do Porto (Portugal)
A. Guerreiro, INESC TEC (Portugal)
Univ. do Porto (Portugal)
D. Viegas, INESC TEC (Portugal)
Cabelte, S.A. (Portugal)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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