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Proceedings Paper

Lab-on-fiber platforms for ultrasound detection: a comparative study
Author(s): M. Giaquinto; A. Ricciardi; A. Cutolo; A. Cusano
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Paper Abstract

Sub-wavelength metallo-dielectric gratings integrated on optical fibers tip and supporting plasmonic resonances were numerically investigated in their behavior as acousto-optical transducers. Different configurations have been analyzed and compared among them in terms of sensitivity, defined as reflectivity intensity variation (at fixed wavelength) with respect to dielectric layer thickness changes. Our results demonstrate that the maximum sensitivity is obtained when an interaction between different plasmonic modes occurs. Sensitivity enhancement up to a factor of 3 with respect to Fabry- Perot cavity like transducer with same materials and sizes can be achieved.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343H (28 September 2015); doi: 10.1117/12.2194972
Show Author Affiliations
M. Giaquinto, Univ. degli Studi del Sannio (Italy)
A. Ricciardi, Univ. degli Studi del Sannio (Italy)
A. Cutolo, Univ. degli Studi del Sannio (Italy)
A. Cusano, Univ. degli Studi del Sannio (Italy)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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