High-Performance of Star-Photonics Crystal Fiber Based on Surface Plasmon Resonance Sensor
Photonic Crystalline (PCF)-based SPR (Surface Plasmon Resonance) sensors continue to develop and achieve goodperformance, but in previous studies, PCF-SPR only has a small refractive index range detection, complex geometricstructure, and low sensitivity. In this paper, we investigate the performance of the Star-shaped PCF-SPR sensor(S-PCF-SPR) in detecting the refractive index of the analyte. We performed numerical simulations using the finite elementmethod (FEM) based on COMSOL Multiphysics version 5.6. It was found that S-PCF-SPR can detect analytes in a widerefractive index range from 1.3 to 139 RIU. S-PCF-SPR has a maximum wavelength sensitivity of 12000 nm/RIU, and thesensor resolution resulting from S-PCF-SPR 5.4 × 10-5. These results indicate that the S-PCF-SPR can be used as a sensorfor sensitive analyte sensing applications and has good sensor resolution.
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