Magnetic field sensor based on D-shaped PCF 
with hybrid-shape air holes

YING Yu; WANG Jinhao; LAI Fanian; GAO Zhijun

Chinese

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Magnetic field sensor based on D-shaped PCF  with hybrid-shape air holes

Design & Manufacture | 更新时间：2026-03-01

- Magnetic field sensor based on D-shaped PCF  with hybrid-shape air holes
- Vol. 45, Issue 2, Pages: 97-102(2026)
- 作者机构：
  
  沈阳建筑大学电气与控制工程学院建筑智能感知与安全监测研究室,辽宁,沈阳,110168
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212;TP183
- Published：2026
- 稿件说明：
移动端阅览
YING Yu, WANG Jinhao, LAI Fanian, et al. Magnetic field sensor based on D-shaped PCF  with hybrid-shape air holes[J]. 2026, 45(2): 97-102.
DOI：

YING Yu, WANG Jinhao, LAI Fanian, et al. Magnetic field sensor based on D-shaped PCF  with hybrid-shape air holes[J]. 2026, 45(2): 97-102. DOI：

摘要

为实现对磁场和折射率的高灵敏度检测，提出了一种基于光子晶体光纤(PCF)的磁场传感器，该传感器以金纳米线作为表面等离子体激元材料，实现了更合适的耦合特征，并以磁流体作为分析物，通过结合金纳米线与磁流体实现表面等离子体共振(SPR)技术。采用有限元法研究了传感器结构参数对传感性能的影响，并对传感结构参数进行了优化。研究结果表明，磁场传感器在120Oe时，其磁场最大灵敏度可达806pm/Oe。此外，在折射率传感方面，获得的最大波长灵敏度为36667nm/RIU。由于其高灵敏度和对外部磁场的稳定响应，所提出的SPR-PCF磁场传感器表现出了优异的性能。

Abstract

In order to achieve highy-sensitive detection of magnetic field and refractive index

a magnetic field sensor based on photonic crystal fiber(PCF)is proposed

in which gold nanowires are used as surface plasmon polarization material to achieve more suitable coupling characteristics.Magnetic fluid is employed as the analyte

and the surface plasmon resonance(SPR) technology is realized through the combined effect of the gold nanowires and the magnetic fluid.The influence of the sensor structural parameters on the sensing performance is investigated by the finite element method

and the sensor structure parameters are optimized.The results show that the maximum magnetic field sensitivity of the sensor reaches 806pm/Oe at 120Oe.Additionally

in terms of refractive index sensing

the maximum wavelength sensitivity achieved is 36667nm/RIU.Due to its high sensitivity and stable response to external magnetic field

the proposed SPR-PCF magnetic field sensor demonstrates excellent performance.

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