Aqueous ethanol detection using a fiber-optic sensor based on Fresnel reflection

Umesh Sampath; Daegil Kim; Minho Song

doi:10.1117/12.2273724

6 September 2017 Aqueous ethanol detection using a fiber-optic sensor based on Fresnel reflection

Umesh Sampath, Daegil Kim, Minho Song

Proceedings Volume 10374, Optical Modeling and Performance Predictions IX; 103740H (2017) https://doi.org/10.1117/12.2273724
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

We propose a novel aqueous ethanol fiber-optic sensor which is based on Fresnel reflection. It is functionalized with a thin-layer of an ethanol-sensitive graphene oxide (GO) coating on a single mode optical fiber end. The trace of ethanol concentration was measured by the variations in Fresnel reflection intensity and the optical properties of graphene oxide. The sensor output was obtained successfully in response to aqueous ethanol concentration from 20% to 100%. The fiber end with GO film exhibited real- time and remote measurement of ethanol concentration with high precision.

Citation Download Citation

Umesh Sampath, Daegil Kim, and Minho Song "Aqueous ethanol detection using a fiber-optic sensor based on Fresnel reflection", Proc. SPIE 10374, Optical Modeling and Performance Predictions IX, 103740H (6 September 2017); https://doi.org/10.1117/12.2273724

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