| 激光烧蚀Al靶诱导的环境气体电离轴向分布 |
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| 引用本文： | 李尊营. 激光烧蚀Al靶诱导的环境气体电离轴向分布[J]. 激光与红外, 2001, 31(3): 156-158 |
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| 作者姓名： | 李尊营 |
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| 作者单位： | 山东临沂师范学院物理系 |
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| 摘 要： | 用Nd:YAG脉冲激光烧蚀Al靶获得等离子体，脉冲能量固定在145mJ/pulse。用Ar作环境气体，压强固定在10kPa。利用时空分辨技术，采集了垂直于靶面方向上，即等离子体轴向，离靶面0．1mm,0.5mm,1.0mm,1.5mm,2.0mm位置处等离子发光光谱。基于各点Ar^2 辐射时间分布，详细分析了Ar^ 辐射轴向分布规律，并对这种分布机制进行了简单的讨论。
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| 关 键 词： | 气体电离 轴向分布 发光光谱 时间分布 激光烧蚀 |
| 文章编号： | 1001-5078(2001)03-0156-03 |
| 修稿时间： | 2000-12-14 |
Distribution of Ambient Gas Ionizing Induced by Laser Ablating Al Along Z Axes |
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| LI Zunying. Distribution of Ambient Gas Ionizing Induced by Laser Ablating Al Along Z Axes[J]. Laser & Infrared, 2001, 31(3): 156-158 |
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| Authors: | LI Zunying |
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| Abstract: | The plasmas were obtained with Nd∶YAG pulsed laser beam ablating aluminum,with the energy of a pulse set up to 145mJ.Ar was used as protecting gas,with the pressure set up to 10kPa.With timeand-space-resolved t echnique,the radiative spectra of the plasmas at 0.1mm,1.0mm,1.5mm,2.0mm in fron t of the surface of the target,along Z axes,were acquired.Based on the time-pro file of Ar+ radiating,the space-distribution of Ar+ radiating along Z axes was analyzed in detail by contrast,and the mechanism of the profile was suggeste d. |
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| Keywords: | gas ionization distribution along Z axes radiative spectrum time profile. |
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