Abstract
A double-sided polished photonic crystal fiber (DP-PCF) for surface plasmon resonance(SPR) sensing is designed and analyzed by using the finite element analysis software COMSOL 5.5. The suggested design shows strong sensitivity stability in the low refractive index (RI) region (\(1.33\sim 1.39\)) and ultra-high sensitivity in the high RI region (\(1.39\sim 1.43\)), respectively. The structural parameters of the proposed sensor are studied to analyze the stability and high sensitivity of the fiber sensor. The introduced DP-PCF sensor offers high sensitivity of 32,434 nm/RIU in the RI range of \(1.39\sim 1.43\) due to its special double-sided polishing design.
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Funding
This work was supported by China National Funds for Distinguished Young Scientists (51425505); Fund for Shanxi “1331 Project” Key Subject Construction; Shanxi Province Science Foundation for Youths (201901D211231); and Scientific and Technologial Innovation Programs of Higher Education Institutions in Shanxi (2019L0502).
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An, G., Jia, P., Liang, T. et al. Double-sided Polished Ultra-stable and Ultra-sensitive Optical Fiber Sensor. Plasmonics 15, 1471–1479 (2020). https://doi.org/10.1007/s11468-020-01168-w
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DOI: https://doi.org/10.1007/s11468-020-01168-w