便携式激光诱导击穿光谱最新研究进展

Research progress on portable laser-induced breakdown spectroscopy

作为一种新型快速的物质成分分析技术,激光诱导击穿光谱(Laser-Induced Breakdown Spectroscopy, LIBS)已经在越来越多的工业领域中被证明具有巨大的应用潜力。然而,由于野外作业或工业现场检测环境嘈杂恶劣,对仪器设备的尺寸和抗恶劣环境的能力提出了更高的要求。近年来,新型激光器的发展进一步促进了LIBS仪器化的进程,使得其逐渐从实验室迈向工业应用,同时也使得LIBS系统逐渐趋于仪器化、专业化、便携化。本文综述了便携式LIBS的发展历程,对各种激光光源(小型Nd:YAG固体激光器、二极管泵浦固体激光器、微片激光器、光纤激光器以及光纤传能的方案)应用于便携式LIBS系统的最新研究进展进行了综述和分类讨论,探讨了当前便携式LIBS存在的基本问题,并对其未来发展趋势进行了展望。

As a new rapid element analysis technique,Laser-Induced Breakdown Spectroscopy(LIBS)has proven iteself to have great potential for applications in increasingly numerous industrial fields.However,due to harsh outdoor and industrial environments,newer and higher requirements are being demanded of the LIBS system,such as the size of its instruments and the ability to resist a harsh environment.The rapid development of new laser technology promotes instrumentation for LIBS,allowing it to gradually step outside the laboratory and into the industry,and allows the LIBS system to gradually move towards instrumentation,miniaturization and portability.In this paper,the development of a portable LIBS that was developed in recent years was reviewed.The application and latest research progress of different kinds of laser source(small lamp pumped solid-state laser,diode pump solid-state laser and micro laser,fiber laser)applied to the portable LIBS system were summarized and discussed,providing insight into both the fiber optic LIBS(FOLIBS)and the handheld LIBS.In addition,the basic problems of current portable LIBS and the prospects of its future were proposed and discussed.