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

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Optica Publishing Group (formerly OSA)

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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.

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