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20 February 2020 Photonic crystal fiber refractive index sensor with ultra-wide detection range based on surface plasmon resonance
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Abstract
We propose an ultra-wide detection range refractive index sensor based on surface plasmon resonance (SPR) with photonic crystal fiber (PCF). The analyte is injected into the central air hole of fiber core. The properties of refractive index sensing are investigated. Simulation results show that the proposed sensor has an ultra-wide detection range from 1.29 to 1.49. The refractive index wavelength sensitivities of x-polarized and y-polarized core mode are -4156.82 nm/RIU and -3703.64 nm/RIU respectively, and the linear fitting degrees are 0.99598 and 0.99236, respectively. The maximum x-pol amplitude sensitivity is -456.589RIU-1 . The maximum y-pol amplitude sensitivity is -1056.33RIU-1 . The designed refractive index sensor has a great potential in the fields of biology, chemistry, environment and medicine.
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Guangyao Wang, Ying Lu, Liangcheng Duan, and Jianquan Yao "Photonic crystal fiber refractive index sensor with ultra-wide detection range based on surface plasmon resonance", Proc. SPIE 11233, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX, 1123317 (20 February 2020); https://doi.org/10.1117/12.2544136
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