Optical fiber gratings: hybrid gold structures for immunoassays

Médéric Loyez; Maxime Lobry; Ruddy Wattiez; Christophe Caucheteur

doi:10.1117/12.2541233

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25 September 2019 Optical fiber gratings: hybrid gold structures for immunoassays

Médéric Loyez, Maxime Lobry, Ruddy Wattiez, Christophe Caucheteur

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Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111993J (2019) https://doi.org/10.1117/12.2541233
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus

Abstract

Biosensing using optical fibers allows the detection of low concentrated analyte, bringing point-of-care and remote analyses. Tilted fiber Bragg gratings (TFBGs) are permanent structures photo-inscribed inside the core of telecommunication-grade optical fibers and are known to be highly sensitive refractometers. In this paper, we present a hybrid gold deposition method to monitor thin depositions in real time though the inherent properties of the spectra. This yield Surface Plasmon Resonance (SPR) enhancements that is of interest for the detection of low concentrations of analytes. We show how to functionalize our sensors against proteic biomarkers. This strategy is one of a series to manufacture TFBGs platforms adapted for biosensing.

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Médéric Loyez, Maxime Lobry, Ruddy Wattiez, and Christophe Caucheteur "Optical fiber gratings: hybrid gold structures for immunoassays", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111993J (25 September 2019); https://doi.org/10.1117/12.2541233

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