The activity hereby presented is part of a project aimed at developing a compact all-fibre setup that exploits the Surface Plasmon Resonance (SPR) phenomenon to detect changes of chemical composition in a flowing liquid. The work has reached a lab prototype level, consisting of a plastic pipe with an embedded multi-mode optical fibre SPR sensor used as a refractometer. A demonstrator has been realised connecting the pipe to a water reservoir through a recirculating pump. Introduction of a contaminant into the flowing water produces a shift of the SPR. The system, tested with isopropyl/water mixtures, shows the capability to measure refractive index variations with a sensitivity of 2000 nm/RIU (RIU stands for Refractive Index Unit). The control unit is developed upon a commercial easy-to-use platform for demonstration and educational purposes.

Portable SPR refractometer for contamination analysis in a flowing liquid / Bano, A.; Olivero, M.; Vallan, A.; Perrone, G.. - (2017), pp. 42 (3 .)-42 (3 .). (Intervento presentato al convegno 19th Italian National Conference on Photonic Technologies (Fotonica 2017)) [10.1049/cp.2017.0217].

Portable SPR refractometer for contamination analysis in a flowing liquid

Bano, A.;Olivero, M.;Vallan, A.;Perrone, G.
2017

Abstract

The activity hereby presented is part of a project aimed at developing a compact all-fibre setup that exploits the Surface Plasmon Resonance (SPR) phenomenon to detect changes of chemical composition in a flowing liquid. The work has reached a lab prototype level, consisting of a plastic pipe with an embedded multi-mode optical fibre SPR sensor used as a refractometer. A demonstrator has been realised connecting the pipe to a water reservoir through a recirculating pump. Introduction of a contaminant into the flowing water produces a shift of the SPR. The system, tested with isopropyl/water mixtures, shows the capability to measure refractive index variations with a sensitivity of 2000 nm/RIU (RIU stands for Refractive Index Unit). The control unit is developed upon a commercial easy-to-use platform for demonstration and educational purposes.
2017
978-1-78561-757-7
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2702519
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