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基于表面等离子共振原理的光学氢气传感已经成为氢气传感技术研究的热点.表面等离子共振传感器具有安全可靠、灵敏度高、实时性好、便于分布式多点检测等优点,在氢气泄漏检测方向具有广阔的应用前景.本综述介绍了表面等离子共振氢气传感器的三种主要结构类型:棱镜耦合结构,光栅耦合结构和光纤耦合结构的检测原理、典型结构及其研究进展;重点论述了表面等离子共振氢气传感技术中氢敏感膜系的研究现状和技术难题;分析了目前表面等离子共振氢气传感实际应用所面临的瓶颈,并对未来的研究方向进行了展望.结合实际,提出了开发基于光纤微结构和纳米材料的新型氢气传感器件,并且将传感原理延伸至局域表面等离子体共振,表面等离子体共振成像等新兴技术.
Optical hydrogen sensing based on the principle of surface plasmon resonance has become a hot research topic in hydrogen sensing technology.Plasma surface plasmon resonance sensors have the advantages of safety, high sensitivity, good real-time, easy distributed multi-point detection, etc., Broad application prospect.This review introduces the three main types of surface plasmon resonance hydrogen sensor: Prism coupling structure, grating coupling structure and optical fiber coupling structure detection principle, typical structure and its research progress; especially the surface plasmon resonance hydrogen The current research status and technical problems of hydrogen sensitive membrane system in sensing technology are analyzed.The bottlenecks in the practical application of surface plasmon resonance hydrogen sensing are analyzed and the future research directions are prospected.According to the actual situation, Structure and nano-materials of new hydrogen sensing devices, and the sensing principle extends to local surface plasmon resonance, surface plasmon resonance imaging and other emerging technologies.