Optical fiber sensors based on indium tin oxide surface plasmon resonance supporting coatings

C. R. Zamarreño; M. Hernáez; I. R. Matías; F. J. Arregui

doi:10.1117/12.835162

5 October 2009 Optical fiber sensors based on indium tin oxide surface plasmon resonance supporting coatings

C. R. Zamarreño, M. Hernáez, I. R. Matías, F. J. Arregui

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75030W (2009) https://doi.org/10.1117/12.835162
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

In this work, surface plasmon resonance (SPR) based optical fiber sensors are proposed by using a transparent conductive coating, Indium Tin Oxide (ITO) in our case, as the SPR supporting layer. The utilization of these ITO coatings instead of using a thin film of gold or silver shifts the plasmon resonance band to the infra-red region and allows the tunability of the SPR wavelength by adjusting the film fabrication parameters. The spectral response of these novel devices is characterized, achieving a sensitivity of 0.00025 refractive index units per nanometer, which opens the door for a wide range of applications.

Citation Download Citation

C. R. Zamarreño, M. Hernáez, I. R. Matías, and F. J. Arregui "Optical fiber sensors based on indium tin oxide surface plasmon resonance supporting coatings", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75030W (5 October 2009); https://doi.org/10.1117/12.835162

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