期刊文献+

激光诱导等离子体中铜原子和铜离子的时空行为 被引量:3

Spatial and Temporal Behaviors of Copper Atoms and Ions in Laser-induced Plasma
下载PDF
导出
摘要 通过光谱观察 ,考察了激光诱导铜等离子体的动力学过程和等离子体成分的时空行为 .不同能量的等离子体粒子 ,产生的机制不同 ,在时空演变过程中显示的行为不同 ,它们受背景气氛的影响也不同 . By observing the optical emissions from copper plasma induced by laser ablationof a copper target, the dynamics of the plasma and the temporal and spatial behaviors of the plasma species are examined. The plasma is ignited from target ablation, evolves from the breakdown of the copper vapor to collisions between copper particles and energetic electrons. At the initial stage, the plasma contains large amount of copper ions and high-excited copper atoms, and then evolves to have low-energy copper atoms with its main composition. The copper particles with different energies are created by different mechanisms, and behaved differently in time and space. In low pressure argon background, the influence of the background gas on the copper particles at different energy states is found not to be the same.
出处 《原子核物理评论》 CAS CSCD 北大核心 2002年第2期195-198,共4页 Nuclear Physics Review
基金 国家自然科学基金资助项目 ( 199740 0 9 19975 0 12 ) 教育部跨世纪优秀人才计划基金资助项目~~
关键词 铜原子 铜离子 时空行为 激光烧蚀 激光诱导等离子体 蒸汽击穿 激发 电离 laser ablation laser-induced plasma vapor breakdown excitation ionization
  • 相关文献

参考文献8

  • 1[1]Ready J F.Effects of High-power Laser Radiation [M].New York:Academic Press,1971,67.
  • 2[2]Haglund F F Jr.Mechanisms of Laser-induced Desorption and Ablation [C].In:Miller J C,Haglund F F Jr,ed.Laser Ablation and Desorption [M].San Diego:Academic Press,1998,15.
  • 3[3]Bekefi G,Deutsch C,Yaakobi B.Spectroscopic Diagnostics of Laser Plasmas [C].In:Bekefi G,ed.Principles of Laser Plasmas.New York:John Wiley & Sons,1976,549.
  • 4[4]Wu J D,Pan Q,Chen S C.Investigation of the Dynamics of Copper Plasma Generated from a Laser-ablated Target Using Optical Emission Analysis [J].Appl Spectrosc,1997,51(6):883.
  • 5[5]Ursu I,Apostol I,Cracium D,et al.On the Influence of Surface Condition on Air Plasma from Near Metals Irradiated by Microsecond TEA CO2 Laser Pulses [J].J Phys D,1984,17(4):709.
  • 6[6]Dreyfus R W.Cu0,Cu+,and Cu2 from Excimer-ablated Copper [J].J Appl Phys,1991,69(3):1 721.
  • 7[7]Kurniawan H,Kobayashi T,Nakajima S,et al.Correlation between Front Speed and Initial Explosion Energy of the Blast Wave-induced by a TEA CO2-laser [J].Jpn J Appl Phys,1992,31(4):1 213.
  • 8[8]Kurniawan H,Ishikawa Y,Nakajima S,et al.Characteristics of the Secondary Plasma Induced by Focusing a 10 mJ XeCl Laser Pulse at Low Pressures [J].Appl Spectrosc,1997,51(12):1769.

同被引文献22

引证文献3

二级引证文献5

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部