Al原子特征辐射谱的实验研究

A Study of Al Characteristic Radiation Spectra

使用带Q开关的Nd ,YAG脉冲激光器发出的脉冲激光束烧蚀金属Al靶产生Al等离子体 .以Al等离子体为光源 ,利用时空分辨技术 ,采集Al等离子体发光信息 ,获得Al原子特征辐射谱 .基于Al原子特征辐射谱 ,简要分析了Al原子共振双线辐射规律 ,并与L -S耦合理论计算作了比较 ,结果发现实验结果与理论分析相符合 .

Al plasmas were obtained by pulsed laser beams, which were produced by an Nd:YAG laser set with Q-switch, ablating metal target Al in Ar. Based on the plasmas, irradiance of the plasmas were recorded with time- and space-resolved technology, so Al characteristic radiation spectra were obtained. According to the spectra, we briefly analyzed the rules of radiation of aluminum resonating double lines, the result was compared with that of theoretical L-S coupling, we found that the two results completely tally with each other.