In this paper, a d-shaped photonic crystal fiber (PCF) biosensor based on surface plasmon resonance (SPR) is numerically analyzed with finite element method (FEM). In the proposed sensor, the flat side of PCF is coated with Indium Tin Oxide (ITO) and Zinc Oxide (ZnO) for maximum sensitivity with detection range 1.30−1.38. The d-shaped design can be fabricated by stack-draw method and upper side of the design is transformed into an analyte channel by etching the fiber surface. This d-shaped PCF-SPR sensor design exhibits maximum wavelength sensitivity of 10,000 nm/RIU and refractive index resolution of 2.0×10⁻⁵.This design can be used in medical industry, environment monitoring for real time detection of analyte.

本文利用有限元方法（FEM）对基于表面等离子体共振（SPR）的d形光子晶体光纤（PCF）生物传感器进行了数值分析。在提出的传感器中，PCF的平坦面涂有氧化铟锡（ITO）和氧化锌（ZnO），以实现最大灵敏度，检测范围为1.30-1.38。的d形设计可以通过堆叠绘制方法和设计的上侧来制造，通过蚀刻在纤维表面转化成分析物通道。此d的2.0×10个10,000纳米/ RIU和折射率的分辨率形PCF-SPR传感器设计表现出最大波长灵敏度^-5。这设计可以在医疗行业中使用，用于分析物的实时检测环境监测。