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28 September 2015 Lab-on-fiber platforms for ultrasound detection: a comparative study
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96343H (2015) https://doi.org/10.1117/12.2194972
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Giaquinto, A. Ricciardi, A. Cutolo, and A. Cusano "Lab-on-fiber platforms for ultrasound detection: a comparative study", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343H (28 September 2015); https://doi.org/10.1117/12.2194972
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