Extrinsic plasmonic optical fiber sensors based on POFs and bacterial cellulose slab waveguides

Nunzio Cennamo; Carlo Trigona; Salvatore Graziani; Luigi Zeni; Francesco Arcadio; Giovanna Di Pasquale; Antonino Pollicino

doi:10.1117/12.2539335

28 August 2019 Extrinsic plasmonic optical fiber sensors based on POFs and bacterial cellulose slab waveguides

Nunzio Cennamo, Carlo Trigona, Salvatore Graziani, Luigi Zeni, Francesco Arcadio, Giovanna Di Pasquale, Antonino Pollicino

Author Affiliations +

Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111990Y (2019) https://doi.org/10.1117/12.2539335
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus

Abstract

We propose a novel extrinsic optical fiber sensor, based on two plastic optical fibers (POFs) combined with a bacterial cellulose (BC) optical waveguide. The POFs connect the green disposable optical sensor with a white light source and with a spectrometer. We have deposited a thin gold film on this innovative slab waveguide for obtaining a Localized Surface Plasmon Resonance (LSPR) sensor. In fact, the deposited thin gold layer is not formed by a continue film and the preliminary experimental results confirm the possibility of using the BC based composite as an environmental friendly optical sensor platform with LSPR capabilities. This approach could be exploited for realizing disposable biosensors, when the green slab waveguide is fixed in a special support. The device has been tested by measuring the refractive index of different water-glycerin solutions.

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Nunzio Cennamo, Carlo Trigona, Salvatore Graziani, Luigi Zeni, Francesco Arcadio, Giovanna Di Pasquale, and Antonino Pollicino "Extrinsic plasmonic optical fiber sensors based on POFs and bacterial cellulose slab waveguides", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111990Y (28 August 2019); https://doi.org/10.1117/12.2539335

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