| 低真空时激光诱导Al等离子体辐射分析 |
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| 引用本文： | 宋一中,李尊营,朱瑞富,王建华.低真空时激光诱导Al等离子体辐射分析[J].光谱学与光谱分析,2001,21(3):290-293. |
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| 作者姓名： | 宋一中 李尊营 朱瑞富 王建华 |
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| 作者单位： | 1. 山东大学(南校区)材料学院生物材料研究室
2. 临沂师范学院物理系 |
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| 基金项目： | 国家自然科学基金资助项目!(699780 1 1 ) |
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| 摘 要： | 用Nd :YAG激光烧蚀Al靶获得等离子体 ,激光脉冲能量为 145mJ·pulse-1,光源中通入Ar气作保护气体 ,压强为 10 0Pa。利用时间分辨技术获得纳秒级时间分辨光谱。分析了等离子体连续辐射、连续辐射的吸收、Al原子谱线辐射的时间演化规律 ,并进行了简短的讨论。结果发现 ,低真空时激光诱导Al等离子体的连续辐射、连续辐射的吸收、Al原子谱线辐射的时间演化规律以及它们之间的相互关系 ,与常压时的情况十分相似
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| 关 键 词： | 时间分辨技术 铝 激光诱导 时间分辨光谱 连续辐射 等离子辐射 原子谱线辐射 |
| 修稿时间： | 2000年10月23 |
Analysis of the Plasma Radiation Induced by Laser Ablating Al at Low Pressure |
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| Y Song,Z Li,R Zhu,J Wang.Analysis of the Plasma Radiation Induced by Laser Ablating Al at Low Pressure[J].Spectroscopy and Spectral Analysis,2001,21(3):290-293. |
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| Authors: | Y Song Z Li R Zhu J Wang |
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| Institution: | Biomaterials Lab, Department of Materiel Science, The Southern Zone of Shandong University, 250061 Jinan. |
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| Abstract: | The plasma was obtained with Nd:YAG laser ablating aluminum. The energy of a pulsed laser beam was set up to 145 mJ. Ar gas was used as protecting gas, its pressure was set up to 100 Pa. The information of the plasma radiation was acquired with time resolved technique.The time resolved spectra including continuum radiation,absorption of continuum radiation and Al atomic spectral lines radiation were obtained.The evolutions of all these radiations were analyzed,and the relationship between them was dicussed briefly.We found that the evolutions of all these radiation at the low pressure were similar to that of at the pressure of one atmosphere. |
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| Keywords: | Time resolved technique Time resolved spectrum Continuum radiation Absorption of continuum radiation Spectral lines radiation of aluminum atoms |
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