A Double-Groove Single-Channel Photonic Crystal Fiber High Refractive Index Sensor Based on SPR
There are many types of sensors,and optical fiber sensors stand out from many sensors due to their miniaturization and excellent performance.Therefore,a D-type double-groove single-channel photonic crystal fiber high refractive index sensor is designed and studied by using the finite element method to calculate the surface plasmon resonance theory as the support point.The results show that the sensor has a good sensing effect under the optimal structural parameters,with a maximum sensitivity of 16 200 nm/RIU and a maximum figure of merit of 255.92/RIU in a wide detection range of 1.32-1.41.It can be seen that the sensor designed in this paper meets the needs of modern development and is expected to achieve application value in medical detection,bio-sensing and other aspects.
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