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Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations

The use of plasmonic sensor devices often requires replaceable parts and disposable chips for easy, fast and on-site detection analysis. In light of these requests, we propose a novel low-cost surface plasmon resonance sensor platform for possible selective detection of analytes in aqueous solutions...

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Autores principales: Cennamo, Nunzio, Mattiello, Francesco, Zeni, Luigi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5539628/
https://www.ncbi.nlm.nih.gov/pubmed/28672796
http://dx.doi.org/10.3390/s17071488
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author Cennamo, Nunzio
Mattiello, Francesco
Zeni, Luigi
author_facet Cennamo, Nunzio
Mattiello, Francesco
Zeni, Luigi
author_sort Cennamo, Nunzio
collection PubMed
description The use of plasmonic sensor devices often requires replaceable parts and disposable chips for easy, fast and on-site detection analysis. In light of these requests, we propose a novel low-cost surface plasmon resonance sensor platform for possible selective detection of analytes in aqueous solutions. It is based on a Polymethyl methacrylate (PMMA) slab waveguide with a thin gold film on the top surface inserted in a special holder, designed to produce the plasmonic resonance at the gold-dielectric interface. A wide-band light is launched in the PMMA slab waveguide through a trench realized in the holder directly, and illuminated with a PMMA plastic optical fiber (POF) to excite surface Plasmon waves. The output light is then collected by another PMMA POF kept at the end of the slab at an angle of 90° to the trench, and carried to a spectrometer. In this configuration, the trench has been used because a large incident angle is required for surface plasmon resonance excitation. The preliminary results showed that the sensor’s performances make it suitable for bio-chemical applications. The easy replacement of the chip allows for the production of an engineered platform by simplifying the measurement procedures.
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spelling pubmed-55396282017-08-11 Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations Cennamo, Nunzio Mattiello, Francesco Zeni, Luigi Sensors (Basel) Article The use of plasmonic sensor devices often requires replaceable parts and disposable chips for easy, fast and on-site detection analysis. In light of these requests, we propose a novel low-cost surface plasmon resonance sensor platform for possible selective detection of analytes in aqueous solutions. It is based on a Polymethyl methacrylate (PMMA) slab waveguide with a thin gold film on the top surface inserted in a special holder, designed to produce the plasmonic resonance at the gold-dielectric interface. A wide-band light is launched in the PMMA slab waveguide through a trench realized in the holder directly, and illuminated with a PMMA plastic optical fiber (POF) to excite surface Plasmon waves. The output light is then collected by another PMMA POF kept at the end of the slab at an angle of 90° to the trench, and carried to a spectrometer. In this configuration, the trench has been used because a large incident angle is required for surface plasmon resonance excitation. The preliminary results showed that the sensor’s performances make it suitable for bio-chemical applications. The easy replacement of the chip allows for the production of an engineered platform by simplifying the measurement procedures. MDPI 2017-06-24 /pmc/articles/PMC5539628/ /pubmed/28672796 http://dx.doi.org/10.3390/s17071488 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cennamo, Nunzio
Mattiello, Francesco
Zeni, Luigi
Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations
title Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations
title_full Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations
title_fullStr Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations
title_full_unstemmed Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations
title_short Slab Waveguide and Optical Fibers for Novel Plasmonic Sensor Configurations
title_sort slab waveguide and optical fibers for novel plasmonic sensor configurations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5539628/
https://www.ncbi.nlm.nih.gov/pubmed/28672796
http://dx.doi.org/10.3390/s17071488
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