一种基于选择性填充D形光子晶体光纤的多参数集成传感器。

A Multi-Parameter Integrated Sensor Based on Selectively Filled D-Shaped Photonic Crystal Fiber.

作者信息

Yang Dan, Wu Tiesheng, Wang Yiping, Cao Weiping, Zhang Huixian, Liu Zhihui, Yang Zuning

机构信息

Guangxi Key Laboratory of Wireless Broadband Communication and Signal Processing, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China.

Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

出版信息

Materials (Basel). 2022 Apr 12;15(8):2811. doi: 10.3390/ma15082811.

DOI:10.3390/ma15082811

PMID:35454504

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9026482/

Abstract

We propose and numerically investigate a multi-parameter integrated sensor based on a selectively filled D-shaped photonic crystal fiber (PCF). The simple structure can be used to comprehensively detect refractive index, magnetic field, temperature, and voltage. According to the surface plasmon resonance and directional coupling effect, the PCF is coated with a gold nano-film to detect the refractive index of the external environment. In addition, magnetic fluid (water-based FeO), toluene, and nematic liquid crystal (NLC E7) are selectively filled into different cladding air holes of the D-shaped PCF to realize the different sensing of the magnetic field, temperature, and voltage. The measurement of refractive index, magnetic field, temperature, and voltage are independent of each other, so these four parameters can be measured simultaneously. The sensing characteristics of the proposed structure are investigated systematically by the finite element method. The results show that the sensitivities of refractive index, magnetic field, temperature, and voltage are 4600 nm/RIU, 1.375 nm/Oe, 15.143 nm/°C, and 0.971 nm/V, respectively. The presented design based on materials selectively filled with D-shaped PCF might enable promising application in multi-parameter optical sensing.

摘要

我们提出并数值研究了一种基于选择性填充的D形光子晶体光纤（PCF）的多参数集成传感器。这种简单结构可用于综合检测折射率、磁场、温度和电压。根据表面等离子体共振和定向耦合效应，在光子晶体光纤上涂覆金纳米膜以检测外部环境的折射率。此外，将磁流体（水基FeO）、甲苯和向列型液晶（NLC E7）选择性地填充到D形光子晶体光纤的不同包层气孔中，以实现对磁场、温度和电压的不同传感。折射率、磁场、温度和电压的测量相互独立，因此这四个参数可以同时测量。通过有限元方法系统地研究了所提出结构的传感特性。结果表明，折射率、磁场、温度和电压的灵敏度分别为4600 nm/RIU、1.375 nm/Oe、15.143 nm/°C和0.971 nm/V。基于选择性填充D形光子晶体光纤材料的所提出设计可能在多参数光学传感中具有广阔的应用前景。