基于SPR效应的深刻蚀微开口双芯对称D型PCF传感器  

Dual-core symmetric D-type PCF sensor with deep etching micro-opening based on SPR effect

作　　者：彭江 王静 PENG Jiang;WANG Jing*(College ofCommunication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003

出　　处：《光通信技术》2024年第1期39-45,共7页Optical Communication Technology

基　　金：南京邮电大学校级自然科学基金项目(NY222129)资助。

摘　　要：为了进一步提升生物传感器传感性能,设计了一种基于表面等离子共振(SPR)效应的深刻蚀微开口双芯对称D型光子晶体光纤(PCF)传感器。该传感器采用堆叠、拉伸技术和化学气相沉积(CVD)技术制备,具有2种不同直径的气孔,且这2种气孔呈对称结构。介绍了采用该传感器的葡萄糖浓度检测系统原理,仿真分析了金属材料、气孔参数、抛光参数对传感器性能的影响。仿真结果表明,当折射率检测范围为1.26~1.41时,传感器的最大波长灵敏度、分辨率和葡萄糖浓度检测灵敏度分别可达24600 nm/RIU、4.06×10^(-6)RI U和2.73 nm/(g·L^(-1))。In order to further improve the sensing performance of biosensors,a dual-core symmetric D-type photonic crystal fiber(PCF)sensor based on the surface plasmon resonance(SPR)effect is designed.The sensor is prepared by stacking,stretching and chemical vapor deposition(CVD)technology,and has two different diameter pores,and the two kinds of pores are symmetrical.The principle of glucose concentration detection system based on the sensor is introduced.The effects of metal materials,stomatal parameters and polishing parameters on the performance of the sensor are simulated and analyzed.The simulation results show that when the refractive index detection range is 1.26~1.41,the maximum wavelength sensitivity,resolution and glucose concentration detection sensitivity of the sensor can reach 24600 nm/RIU,4.06×10^(-6) RIU and 2.73 nm/(g·L^(-1))respectively.

关 键 词：葡萄糖 折射率传感 生物传感 表面等离子体共振 

分 类 号：TN91[电子电信—通信与信息系统] O436[电子电信—信息与通信工程]