Chalcogenide Fiber Optic Sensing
Chalcogenide glasses are a matchless material as far as mid-infrared (IR) applications are concerned. The well-known advantages of fiber lasers over their bulk counterparts, namely superior stability and beam quality, compactness, cost-efficiency, flexibility, and maintenance-free operation, can only be fully harnessed in the mid-infrared wavelength range with the development of non-existent yet. Surface biotinylation of the fiber tapered sensing zone has been achieved by reactivity of a maleimide function on sulfhydryl moieties of the glassy surface. The unique optical properties of chalcogenide glasses, including a broad transparency window (2–16 μm), high refractive index.
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