Effect of ZnO plasma plume dynamics on laser ablation

被引：0
|
作者：
Takahiko Bando
Kenji Abe
Masafumi Yamashita
机构：
[1] Tokyo University of Science,Department of Physics
来源：
Optical Review | 2010年 / 17卷
关键词：
pulsed laser deposition; zinc oxide; plasma plume; ablation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The dynamic behaviors and optical properties of a ZnO plasma plume produced by pulsed laser ablation using a Nd:YAG laser (wavelength: 532 nm, pulse width: 3 ns) were studied by fast photography using a commercial gated charge coupled device (CCD) camera linked with a delay circuit and by optical emission spectroscopy at various ambient oxygen pressures. Fast photography was conducted with a resolving power of 0.25 μs and the expansion behaviors of the laser ablation plume were observed. Plasma plume expansion velocity decreased with oxygen partial pressure. The flow of the plasma plume in the early stage of expansion of up to 3 ms agreed well with the drag model.
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页码：309 / 312
页数：3
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