| 激光诱导Ni等离子体发射光谱的空间演化特性研究 |
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| 引用本文： | 杜传梅,张明旭,徐颖.激光诱导Ni等离子体发射光谱的空间演化特性研究[J].原子与分子物理学报,2012,29(4):655-660. |
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| 作者姓名： | 杜传梅 张明旭 徐颖 |
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| 作者单位： | 1. 安徽理工大学土木建筑学院,淮南,232001
2. 安徽理工大学材料科学与工程学院,淮南,232001 |
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| 基金项目： | 国家973计划项目（编号：2012CB214903）、土木工程省级示范专业经费资助项目、2011年安徽省建设行业科学技术计划项目（2011YF-04）、2011年中国煤炭工业协会基金项目（编号：MTK2011-450） |
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| 摘 要： | 在350～600 nm波长范围内测定了激光烧蚀Ni等离子体中Ni原子的空间分辨发射光谱.测定了385.83 nm发射光谱线的相对强度和STARK展宽及其随径向的变化特性.结果表明,在沿激光束方向上,当距离靶表面0～2.5 mm范围内变化时,谱线的STARK展宽和谱线的强度都随距靶面距离的增大先增大,但增大到最大值后随距离的进一步增大而减小.谱线强度和STARK加宽的最大值都出现在离靶面约1.5 mm处.
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| 关 键 词： | 激光诱导Ni等离子体 发射光谱 空间分辨谱 斯塔克展宽 |
| 收稿时间： | 2/1/2012 12:00:00 AM |
Investigation on the Spatial Evolution of the Emission Spectra in Laser-Induced Ni Plasmas |
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| DU Chuan-Mei
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ZHANG Ming-Xu
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XU Ying.Investigation on the Spatial Evolution of the Emission Spectra in Laser-Induced Ni Plasmas[J].Journal of Atomic and Molecular Physics,2012,29(4):655-660. |
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| Authors: | DU Chuan-Mei ZHANG Ming-Xu XU Ying |
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| Institution: | 1 (1.School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China) 2.School of Materials Science and Engineering,Anhui University of Science and Technology,Huainan 232001,China) |
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| Abstract: | In this paper, the spatial resolved emission spectrum of Ni atom in laser induced Ni plasma is measured in the wavelength region from 350nm to 600nm.
The spatial evolution of the relative intensities and the Stark broadening of the 385.83nm emission spectrum lines are also obtained. It is shown that Stark broadening and intensity of the spectrum lines increases firstly to its maximum and then decreases along the direction of laser beam when the distance from the target surface is in the range from 0 to 2.5mm. The maximum value of Stark broadening and relative intensity of the spectrum lines appear at 1.5 mm from the target surface. |
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| Keywords: | laser induced Ni plasma emission spectra the spatial resolved emission spectrum Stark broadening |
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