Influence of ambient gas on the temperature and density of laser produced carbon plasma

被引：134
|
作者：
Harilal, SS [1 ]
Bindhu, CV [1 ]
Nampoori, VPN [1 ]
Vallabhan, CPG [1 ]
机构：
[1] Cochin Univ Sci & Technol, Int Sch Photon, Laser Div, Cochin 682022, Kerala, India
来源：
APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 02期
关键词：
D O I：
10.1063/1.120602
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of ambient gas on the dynamics of the plasma generated by laser ablation of a carbon target using 1.06 mu m radiation from a Q-switched Nd:YAG laser:has been investigated using a spectroscopic technique. The emission characteristics of the carbon plasma produced in argon, helium and air atmospheres are found to depend strongly on the nature and pressure of the surrounding gas. It has been observed that hotter and denser plasmas are formed in an argon atmosphere rather than in helium or air as an ambient. (C) 1998 American Institute of Physics.
引用
收藏
页码：167 / 169
页数：3
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