Abstract

In this paper, we review the study, optical characteristics of chalcogenide thin films and its sensor applications. Chalcogenide Glasses (ChGs) are most widely used candidate for sensing with wide infrared transparency as well as almost limitless capability for composition alloying and property tailoring. Radiation sensors, Surface Plasma Resonance (SPR) based sensors, Respiratory sensors, Bio-molecule sensors and filter less color image sensor are discussed.