基于表面等离激元的光学氢气传感技术

Optical hydrogen sensing technology based on surface plasmon

综述了基于表面等离激元(surface plasmon,SP)的光学氢气传感技术的研究进展,重点介绍了两种基于SP的测量方法,即局域表面等离激元共振法(localized surface plasmon resonance,LSPR)和表面等离激元共振法(surface plasmon resonance,SPR),继而阐述了基于这两种原理的传感器的测量方法、传感结构和传感特性。此外,回顾了现有的各种不同的光学氢气传感器,并介绍了它们各自存在的优/劣势。最后,强调了未来基于SP的光学氢气传感器的发展方向和重要挑战,如具备特异性和稳定性的特殊材料、不断发展与应用的新型纳米结构以及可以适应未来需求的多点式传感。

The research progress of optical hydrogen sensing technology based on surface plasmon(SP)is summarized,and two measurement methods based on SP,namely localized surface plasmon resonance(LSPR)and surface plasmon resonance(SPR),and then the measurement method,sensing structure and sensing characteristics of the sensor based on these two principles are expounded.In addition,various existing optical hydrogen sensors are reviewed,and their advantages and disadvantages are introduced.Finally,we emphasize the development direction and important challenges of SP-based optical hydrogen sensors in the future,such as special materials with specificity and stability,new nanostructures that are constantly developed and applied,and multi-point sensors that can meet future needs.