| 高气压Ar对激光诱导Al等离子体辐射特性的影响 |
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| 引用本文： | 史金超,陈金忠,刘云山.高气压Ar对激光诱导Al等离子体辐射特性的影响[J].应用激光,2005,25(6):401-404. |
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| 作者姓名： | 史金超 陈金忠 刘云山 |
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| 作者单位： | 河北大学物理科学与技术学院,河北,保定,071002 |
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| 基金项目： | 河北省科技厅攻关项目(02820180D)资助 |
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| 摘 要： | 用高能量钕玻璃激光器(0~25J)烧蚀Al靶产生等离子体。实验中测量了Ar气气压在0.1~1.0MPa范围内,等离子体发射光谱的谱线强度、半宽度、信背比以及等离子体的电子温度和电子密度随气压的变化。结果表明,随着环境气体压强的升高,等离子体的空间体积被压缩,电子温度和电子密度增大,辐射强度有明显的增强。
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| 关 键 词： | 激光诱导等离子体 高气压 谱线强度 电子温度 电子密度 |
| 收稿时间： | 2005/9/30 |
| 修稿时间： | 2005年9月30日 |
Effects of Argon Atmosphere at High Pressure on Radiation Characteristic of Laser-induced Al Plasmas |
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| Shi Jinchao,Chen Jinzhong,Liu Yunshan.Effects of Argon Atmosphere at High Pressure on Radiation Characteristic of Laser-induced Al Plasmas[J].Applied Laser,2005,25(6):401-404. |
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| Authors: | Shi Jinchao Chen Jinzhong Liu Yunshan |
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| Abstract: | Aluminum plasma was induced with a high energy neodymium glass laser(0～25J) beam ablating Al target.Both the line intensity、half width、signal-to-background ratio of the emission spectra and the electron temperature、electron density of the plasma was mearsured in Ar atmosphere at 0.1～1.0MPa pressure.The experimental results show that the volume of the plasma is compressed,the electron temperature and density increased,the radiation intensity enhanced significantly when pressure raise. |
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| Keywords: | Laser-induced plasma High pressure Line intensity Electron temperature Electron density |
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