Bromophenol blue thin film coated fiber optic response towards pH sensing


The fabrication and characterization of a fiber optic pH sensor based on the evanescent wave absorption is presented in this paper. The sensor is prepared by coating the immobilized indicator in a sol-gel thin film onto the uncladded middle portion of a multimode plastic clad silica (PCS) fiber. The evanescent wave is used to selectively excite the… (More)


5 Figures and Tables

Slides referencing similar topics