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| 激光诱导Al等离子体发射光谱特性的实验研究 | |
| 引用本文： | 唐晓闩,李春燕,季学韩,凤尔银,张为俊,崔执凤.激光诱导Al等离子体发射光谱特性的实验研究[J].原子与分子物理学报,2004,21(2):176-180. |
| 作者姓名： | 唐晓闩 李春燕 季学韩 凤尔银 张为俊 崔执凤 |
| 作者单位： | 1. 安徽师范大学物理系原子与分子物理实验室,芜湖,24100;中国科学院安徽光学精密机械研究所环境光谱学实验室,合肥,230031 2. 安徽师范大学物理系原子与分子物理实验室,芜湖,24100 3. 中国科学院安徽光学精密机械研究所环境光谱学实验室,合肥,230031 |
| 基金项目： | 安徽省重点学科基金资助和安徽省教育厅自然科学基金重点资助项目(批准号:2001KJ116ZD) |
| 摘 要： | 本文从实验上研究了不同缓冲气体(He,Ar,N2和Air)中激光Al等离子体的时间分辨发射光谱,研究了原子发射谱线的强度和Stark展宽随延时、缓冲气体性质和压力变化的规律.结果表明原子谱线的强度在3μs左右达到最大值,随着延时的增加,谱线的Stark展宽减小,而缓冲气体压力的增大导致谱线的Stark展宽增大,在实验测定的四种缓冲气体中,Ar气体中谱线的Stark展宽最大. |
| 关 键 词： | 激光等离子体 谱线强度 Stark展宽 |
| 文章编号： | 1000-0364(2004)02-0176-05 |
| 收稿时间： | 8/4/2003 12:00:00 AM |
An experimental investigation on the properties of Laser-induced plasma emission spectra` |
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| TANG Xiao-shuan.An experimental investigation on the properties of Laser-induced plasma emission spectra`[J].Journal of Atomic and Molecular Physics,2004,21(2):176-180. | |
| Authors: | TANG Xiao-shuan |
| Institution: | TANG Xiao-shuan~ |
| Abstract: | In this paper, we have measured the time-resolved emission spectra produced by Nd: YAG laser induced Al plasma with different kinds of buffer gas (He, Ar, N2 and Air). The dependence of emission spectra line intensity and Stark broadening on the time delay, kinds and pressure of buffer gas are studied. The results show that the atomic emission line intensity reaches maximum at 3 μs time delay, the Stark broadening increases with increasing the pressure of buffer gas, and decreases with increasing time delay. The Stark broadening in Ar buffer gas is largest among the four different kinds of buffer gas. |
| Keywords: | Laser-induced Al plasma Spectra line intensity Stark broadening |
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