Device and method for detecting glucose based on optical fiber surface plasma resonance
A surface plasmon and detection device technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of limited popularization and application, complex biological sensitive membranes, expensive and precise wavelength demodulators, etc., and achieve simplification The effect of the preparation process
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[0036] Such as figure 1 As shown, this embodiment discloses a glucose detection device based on optical fiber surface plasmon resonance, which includes a light source 1, a polarizer 2, a polarization controller 3, a sensor probe 4, a filter 5, and a photodetector, which are sequentially connected through an optical fiber. 器6; Such as figure 2 As shown, the sensor probe 4 includes an optical fiber engraved with a tilted fiber grating 7, and the outer surface of the fiber cladding is plated with a metal film 8 of nanometer thickness. The light emitted by the light source 1 passes through the polarizer 2 and the polarization controller 3 and then enters the sensor. In the optical fiber with tilted fiber grating engraved in the probe 4, the cladding mode that meets the phase matching condition generated in the optical fiber is coupled to the metal film on the outer surface of the optical fiber cladding, and the surface plasmon resonance is excited. The sensor probe wi...
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