基于荧光猝灭效应的光纤传感器研究进展

Research Progress of Optical Fiber Sensors Based on Fluorescence Quenching Effect

光纤荧光传感器结合了荧光检测灵敏度高、鉴别性强和光纤体积小、抗干扰能力强等优点,由于部分荧光检测物质对荧光强度有猝灭作用,所以基于猝灭效应的光纤荧光传感器具有重要的研究意义。本文对基于荧光猝灭效应光纤传感器的研究进展进行综述,简要描述了荧光猝灭效应的检测机理,并根据传感光纤结构的不同,对光纤与荧光检测的结合机理进行了分类总结。在此基础上阐述了基于荧光猝灭效应的光纤荧光传感器在重金属离子检测、爆炸物检测等领域的应用,分析了猝灭剂、荧光材料的相互作用和传感器的性能指标,最后对其发展方向进行了展望。

Optical fiber fluorescence sensor combines the advantages of high sensitivity,strong discrimination of the fluorescence detection and small size,strong anti-interference ability of fiber.Because some of the fluorescent detection substances have a quenching effect on the fluorescence intensity,the optical fiber fluorescence sensor based on the quenching effect has important research significance.In this paper,the research progress of the optical fiber sensor based on the fluorescence quenching effect is reviewed.The detection mechanism of the fluorescence quenching effect is briefly described.The combination mechanism of the optical fiber and the fluorescence detection is classified and summarized according to the structure of the sensing optical fiber.On this basis,the applications of the optical fiber fluorescent sensor based on the fluorescence quenching effect in the fields of heavy metal ion detection,explosive detection and other fields are described.The interaction between the quencher and fluorescent material,and the performance index of the sensor are analyzed.Finally,the development direction of the optical fiber sensors based on fluorescence quenching effect is prospected.