激光诱导Al等离子体发射光谱分析

摘要

Laser-induced plasma technology is an important topic of the research on interaction between laser and material for a long time. The experiment system of laser induced plasma is researched and designed. Nd:YAG laser is used to induce Aluminum sample to produce plasma. And the Aluminum plasma emission spectra under dif⁃ferent energies are obtained. The element types contained in Aluminum sample and the changing relationship be⁃tween spectral line intensity and laser energy are analyzed. Experimental results show that the Aluminum sample contains Fe and Mg elements and with the increase of laser energy, spectra intensity increases obviously.%激光诱导等离子体技术长期以来都是研究激光与物质相互作用的重要课题。研究并设计了激光诱导等离子体实验系统，应用Nd：YAG激光器诱导Al样品产生等离子体，获得了不同能量下的Al等离子体发射光谱，分析了Al样品中所含元素种类以及谱线强度与激光能量之间的变化关系。实验结果表明，Al样品中含有Fe、Mg元素，随着激光能量的增大，谱线强度明显增大。