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

Yanshu Zeng, Jingwei Lv, Haihao Fu, Xianwen Wu, Lin Yang, Wei Liu, Zao Yi, Qiang Liu, Chunjie Hu, Yan Lv, Paul K. Chu, and Chao Liu

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Abstract

Surface plasmon resonance (SPR) is widely used in photonic crystal fiber sensors. In this work, a photonic crystal fiber sensor based on ${{\rm HE}_{1,1}}$ 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, ${4.07} \times {{10}^{- 6}}\;{\rm RIU}$, and ${1164.13}\;{{\rm RIU}^{- 1}}$, 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.

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Corrections

12 December 2022: A typographical correction was made to the author listing.

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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