Fast photography of XeCl laser-induced plasma of graphite in vacuum and in nitrogen atmosphere
Fast photography of XeCl laser-induced plasma of graphite in vacuum and in nitrogen atmosphere
复制标题
真空和氮气气氛中 XeCl 激光诱导石墨等离子体的快速摄影
DOI：
10.1088/0953-4075/36/2/306
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. D. Giorgi
中科院分区：
文献类型：
--
作者：
S. Acquaviva;M. D. Giorgi
采用门控增强型紧耦合器件相机进行快速摄影，研究了真空和氮气气氛下308 nm激光诱导石墨烧蚀等离子体中化学物种的时空演化。使用窄干涉滤光片记录了发光羽流的一系列帧，并从所获得的图像中估计了等离子体膨胀速度。目前的观察同意在相同的实验条件下进行的光学发射光谱调查。
Fast photography with a gated intensified close-coupled device camera was applied to provide a visualization of the temporal and spatial evolution of chemical species in a plasma induced by a 308 nm laser during graphite ablation, in vacuum and in nitrogen atmosphere. A sequence of frames of the luminous plume was recorded, using narrow interference filters, and plasma expansion velocity was estimated from the acquired images. Present observations agree with optical emission spectroscopic investigations performed under the same experimental conditions.