微纳结构光纤光谱学  

Micro/nano-Structured Optical Fiber Laser Spectroscopy

作　　者：靳伟[1,2] 鲍海泓 齐云[1,2] 赵焱 赵鹏程 高寿飞 何海律[1,2] Jin Wei;Bao Haihong;Qi Yun;Zhao Yan;Zhao Pengcheng;Gao Shoufei;Ho Hoi Lu(Department of Electrical Engineering,The Hong Kong Polytechnic University,Hong Kong,China;Photonics Research Center,The Hong Kong Polytechnic University Shenzhen Research Institute,Shenzhen,Guangdong 518057,China)

机构地区：[1]香港理工大学电机工程学系,中国香港 [2]香港理工大学深圳研究院光子研究中心,广东深圳518057

出　　处：《光学学报》2021年第1期395-412,共18页Acta Optica Sinica

基　　金：国家重点研发计划(2019YFB2203904);国家自然科学基金重大科研仪器研制项目(61827820);国家自然科学基金重点项目(61535004);广东特支计划本土创新团队项目(2019BT02X105)。

摘　　要：微纳结构光纤光谱学是指以空芯微结构或微纳光纤为样品池,光和物质在纤芯内部或表面进行相互作用的光谱学技术。本文回顾空芯和微纳光纤导光的基本原理,介绍气体、液体样品池构建的理论和方法,综述基于光谱吸收、光热、光声、荧光、拉曼等效应的微纳结构光纤光谱学的最新进展及今后可能的发展方向。微纳结构光纤对光场的束缚能力强、模场能量在空气中的比例高,可实现光和物质在其中的高效、长距离相互作用。微纳结构光纤样品池的采用,可提升传统光谱学系统的性能或构建新型的光谱学系统;应用传输光纤与其他光学元器件进行柔性连接,可促进光谱学仪器和传感器的小型化和实用化。Micro/nano-structured optical fiber laser spectroscopy refers to laser spectroscopy with hollow-core or micro/nano-scale solid-core optical fibers as the sample cells. Light-matter interaction takes place inside or in the close vicinity of the core. This paper reviews the basics of light propagation in micro/nano-structured optical fibers, introduces the theory and construction of gas/liquid cells with these fibers, and reports the recent progress of gas/liquid detection with direct absorption, photothermal, photoacoustic, fluorescence and Raman spectroscopy as well as possible further research directions. A micro/nano-structured optical fiber tightly confines a light mode in or near the fiber core and has a large fraction of mode field in air, which enables strong light-matter interaction over a long distance. The use of micro/nano-structured optical fiber as the sample cells would improve the performance of existing spectroscopic techniques as well as create novel spectroscopic methods. The optical fiber sample cells may be flexibly connected to other photonic components, promoting miniaturization and practical applications of spectroscopic sensing and instrumentation.

关 键 词：光谱学 激光光谱 微结构光纤 空芯光纤 光纤传感器 纳米光波导 拉曼光谱学 

分 类 号：TN25[电子电信—物理电子学]