In this work, we design a D-shaped photonic-crystal fiber (PCF) sensor with a large-hole self-reference channel based on the surface plasmon resonance. Using the numerical calculation method, we study variations of the transmission spectrum with concentration for the aqueous glucose solution. By optimizing the silver-film thickness of the reference and detected channels, we find that the sensitivity does not depend on the silver-film thickness h of the self-reference channel at high glucose concentrations. The sensitivity is more influenced by the silver-film thickness H of the detected channel. Finally, we obtain the maximum sensitivity of the D-shape PCF sensor equal to 20.2 nm/(mg/ml) and the lower limit of detection equal to 2.5 μg/ml at the silver-film thickness of the detected channel H = 50.0 nm and the self-reference h = 40.0 nm.

在这项工作中，我们基于表面等离子体激元共振，设计了一个具有大孔自参考通道的D形光子晶体光纤（PCF）传感器。使用数值计算方法，我们研究了葡萄糖水溶液的透射光谱随浓度的变化。通过优化参考通道和检测通道的银膜厚度，我们发现灵敏度不取决于高葡萄糖浓度下自参考通道的银膜厚度h。感光度受银膜厚度H的影响更大检测到的频道。最后，在检测通道的银膜厚度H = 50时，我们得到D形PCF传感器的最大灵敏度等于20.2 nm /（mg / ml），检测下限等于2.5μg/ ml 。0 nm，自参考h = 40 。0纳米