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Proceedings Paper

Moving the wavelength detection range in surface plasmon resonance sensors based on tapered optical fibers
Author(s): Natalia Díaz-Herrera; Agustin González-Cano; Diana Viegas; José Luis Santos; María-Cruz Navarrete; Óscar Esteban
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Paper Abstract

It is shown how the design possibilities offered by double-layer uniform-waist tapered optical fibers (DLUWTs) permit to move the wavelength detection range to adapt the response of the sensors to varied conditions. In particular, we have obtained very good experimental curves showing that we can achieve plasmon resonances in the C-band of the optical communications, around 1.5 μm, for the range of refractive indices of aqueous media, highly interesting in the biosensors field. Also, we show results for other interesting wavelength region, around 500 nm, where we can take advantage of the absorption peaks of the analytes. Finally, we explore the possibilities of using InN as a dielectric material for the second layer of the deposition. These results contribute to considerably expand the applicability and performance of SPR fiber sensors.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76531F (8 September 2010); doi: 10.1117/12.866156
Show Author Affiliations
Natalia Díaz-Herrera, Univ. Complutense de Madrid (Spain)
Agustin González-Cano, Univ. Complutense de Madrid (Spain)
Diana Viegas, INESC Porto (Portugal)
Univ. do Porto (Portugal)
José Luis Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)
María-Cruz Navarrete, Univ. Complutense de Madrid (Spain)
Óscar Esteban, Univ. de Alcalá (Spain)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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