紫外激光诱导击穿光谱的应用与发展

摘要

Laser induced breakdown spectroscopy (LIBS) is an element analysis technique based on atomic emission spectroscopy and an important research method in the field of elemental analysis.As the excitation source of LIBS analysis, ultra-violet(UV) laser has the advantages of high photon energy and high spatial resolution, so it can effectively improve the ablation efficiency, reduce the fractionation effect and has good application prospects in geological and biological medicine detection.UV laser can also effectively enhance the effect of elemental analysis, and expand the application scope of LIBS technology.The principle and characteristics of ultraviolet LIBS technology were introduced.The application of ultraviolet LIBS technology at home and abroad was discussed.The development trend of ultraviolet LIBS technology was summarized.%激光诱导击穿光谱(LIBS)技术是一种基于原子发射光谱的元素分析技术,是元素分析领域重要的研究手段.作为LIBS分析的激发光源,紫外激光具有光子能量大、空间分辨率高等优点,可以提高烧蚀效率、减少分馏效应,在地质检测和生物医药检测方面有很好的应用前景;也可从提升元素分析的效果,扩大LIBS技术的应用范围.介绍了紫外LIBS技术的原理与特点,讨论了国内外紫外LIBS技术的应用,总结了紫外LIBS技术的发展趋势.