Mixed-matrix composite integrated fiber optic CO2 sensor

Abstract: a mixed-matrix composite integrated fiber-optic (fo) sensor system was developed that reliably operates as a detector for gas-phase and dissolved co. a mixed-matrix composite sensor coating on the fo sensor comprising plasmonic nanocrystals and zeolite embedded in a polymer matrix. the mixed-matrix composite fo sensor showed excellent reversibility/stability in a high humidity environment and sensitivity to gas-phase coover a large concentration range. the sensor exhibited the ability to sense coin the presence of other geologically relevant gases. a prototype fo sensor configuration which possesses a robust sensing capability for monitoring dissolved coin natural water was demonstrated. reproducibility was confirmed over many cycles, both in a laboratory setting and in the field.

Inventor(s): Ki-Joong Kim, Jeffrey T. Culp, James E. Ellis

CPC Classification: G02B6/02395 (Optical fibres with cladding {with or without a coating})

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