Phase interrogated plasmonic optical fiber optrode with bimetallic layers

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

doi:10.1117/12.2195090

28 September 2015 Phase interrogated plasmonic optical fiber optrode with bimetallic layers

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

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346B (2015) https://doi.org/10.1117/12.2195090
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

Optical fiber optrodes are attractive sensing devices due to their ability to perform point measurement in remote locations. Mostly, they are oriented to biochemical sensing, quite often relying on fluorescent and spectroscopic techniques, but with the refractometric approach being also considered when the objective is high measurement performance, particularly when focusing on measurand resolution. In this work, we address this subject proposing and theoretically analyzing the characteristics of a fiber optic optrode relying on plasmonic interaction. The optrode structure is a fiber optic tapered tip layout incorporating a lateral bimetallic layer (silver + gold) and operating in reflection.

Citation Download Citation

H. Moayyed, I. T. Leite, L. Coelho, J. L. Santos, and D. Viegas "Phase interrogated plasmonic optical fiber optrode with bimetallic layers", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346B (28 September 2015); https://doi.org/10.1117/12.2195090

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