HE1,1 mode excited surface plasmon resonance for high-sensitivity sensing by photonic crystal fibers

Surface plasmon resonance (SPR) is widely used in photonic crystal fiber sensors. In this work, a photonic crys-tal fiber sensor based on HE1,1 mode excited SPR is designed and analyzed by the finite element method. The maximum wavelength sensitivity, optimal resolution, and amplitude sensitivity of the optical fiber sensor are 24,600 nm/RIU, 4.07 x 10-6 RIU, and 1164.13 RIU-1, respectively, for the refractive index range between 1.29 and 1.39. The sensor has excellent properties and wide application prospects in bimolecular and biochemical sensing, environmental monitoring, food safety, and other fields. (c) 2022 Optica Publishing Group

Automated summary

In this work, a photonic crystal fiber sensor based on HE1,1 mode excited surface plasmon resonance (SPR) is designed and analyzed by the finite element method. It exhibits a maximum wavelength sensitivity of 24,600 nm/RIU, optimal resolution of 4.07 x 10-6 RIU, and amplitude sensitivity of 1164.13 RIU-1 for the refractive index range between 1.29 and 1.39. The sensor has excellent properties and wide application prospects in bimolecular and biochemical sensing, environmental monitoring, food safety, and other fields.