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Refractive index sensing in high-refractive-index liquids based on tapered fiber optic coated with silicon nitride thin film

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Abstract

Sensor based on tapered optical fiber with silicon nitride thin film to increase its sensitivity. Sensing experiments on several concentrations of glycerol in deionized water reaches sensitivity of 291 nm/RIU, with high reproducibility and reversible.

© 2016 Optical Society of America

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