基于光子晶体的氯化钠溶液浓度传感研究  

Study on concentration sensing of sodium chloride solution based on photonic crystal

作　　者：梅永[1,2,3,4] 朱飞宏 庄建军 Mei Yong;Zhu Feihong;Zhuang Jianjun(Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing University of Information Science and Technolog,Nanjing 210044,China;Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(AEMPC),Nanjing University of Information Science and Technolog,Nanjing 210044,China;School of Environmental Science and Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China;Engineering Training Center,Nanjing University of Information Science and Technology,Nanjing 210044,China;Chang Wang School of Honors,Nanjing University of Information Science and Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学大气环境与装备技术协同创新中心,南京210044 [2]南京信息工程大学江苏省大气环境监测与污染控制高技术研究重点实验室,南京210044 [3]南京信息工程大学环境科学与工程学院,南京210044 [4]南京信息工程大学工程训练中心,南京210044 [5]南京信息工程大学长望学院,南京210044

出　　处：《电子测量技术》2022年第24期54-59,共6页Electronic Measurement Technology

基　　金：江苏省大气环境监测与污染控制高技术研究重点实验室开放基金(KHK1902);中国气象局软科学项目(2022ZZXM21)资助

摘　　要：为了得出光子晶体缺陷透射峰位置与溶液折射率及溶液浓度的关系,本文提出一种利用氯化钠溶液构建缺陷层的一维光子晶体传感模型,采用传输矩阵法计算和分析了缺陷峰波长与氯化钠溶液浓度之间的关系。结果表明,缺陷峰波长与溶液折射率及其氯化钠浓度呈正比关系,利用该传感模型测量溶液浓度的灵敏度为0.57 nm/%。本文提出的一维光子晶体传感模型具有灵敏度高、受温度影响小、可在线测量等特点,为实际光子晶体传感器的设计提供了理论参考。In order to obtain the relationship between the position of the transmission peak of the photonic crystal defect and the refractive index(concentration)of the solution,a one-dimensional photonic crystal sensor model of defect layer constructed by sodium chloride solution is proposed.The relationship between defect peak wavelength and concentration of sodium chloride solution is calculated and analyzed by transfer matrix method.The results show that the wavelength of defect peak is proportional to the refractive index of solution and the concentration of sodium chloride.The sensitivity of solution concentration measured by the sensor model is 0.57 nm/%.The one-dimensional defect photonic crystal sensor model proposed in this paper has the advantages of high sensitivity,low temperature influence and real-time detection,which provides a theoretical reference for the design of practical photonic crystal sensors.

关 键 词：一维光子晶体 缺陷模 传输矩阵 溶液浓度 

分 类 号：O734[理学—晶体学] TP212[自动化与计算机技术—检测技术与自动化装置]