Analysis of phase interrogation of SPR fiber optic sensors with characteristics tailored by the application of different metal-dielectric overlays

H. Moayyed; I. T. Leite; L. Coelho; J. L. Santos; A. Guerreiro; D. Viegas

doi:10.1117/12.2059768

2 June 2014 Analysis of phase interrogation of SPR fiber optic sensors with characteristics tailored by the application of different metal-dielectric overlays

H. Moayyed, I. T. Leite, L. Coelho, J. L. Santos, A. Guerreiro, D. Viegas

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91575E (2014) https://doi.org/10.1117/12.2059768
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

H. Moayyed, I. T. Leite, L. Coelho, J. L. Santos, A. Guerreiro, and D. Viegas "Analysis of phase interrogation of SPR fiber optic sensors with characteristics tailored by the application of different metal-dielectric overlays", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575E (2 June 2014); https://doi.org/10.1117/12.2059768

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