利用Nd:YAG激光器输出的532nm激光束对位于空气中的标准变形铝合金样品进行烧蚀产生了激光诱导等离子体.对测量的230—440nm波长范围的光谱进行了谱线标定,同时基于自由定标方法对样品成分进行了定量分析,确定了样品中的元素含量.分析结果与标准值具有较好的一致性.
Laser-induced breakdown plasma is produced by using Q-switched Nd:YAG laser operating at 532 nm,which interacts with the Al alloy sample target in air.The spectral lines in the 230—440 nm wavelength range have been identified,and based on the calibration-free method,the mass concentration of Al alloy are obtained,which is in good agreement with the standard value of the sample.