Ultracold neutral plasma expansion in two dimensions
Ultracold neutral plasma expansion in two dimensions
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DOI：
10.1063/1.2140683
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发表时间：
2005-08
影响因子：
2.2
通讯作者：
E. A. Cummings;J. Daily;D. Durfee;S. Bergeson;S. Bergeson
中科院分区：
文献类型：
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作者：
E. A. Cummings;J. Daily;D. Durfee;S. Bergeson;S. Bergeson
将超冷中性等离子体膨胀的等温模型推广到非球对称系统。它被用来解释超冷中性钙等离子体的新荧光测量。对于自相似展开，流体方程得到了解析解和数值解。密度和速度解用于预测弱聚焦到等离子体中的激光束所引起的荧光信号。尽管模型简单，但预测的荧光信号再现了实验数据的主要特征。
An isothermal model of ultracold neutral plasma expansion is extended to systems without spherical symmetry. It is used to interpret new fluorescence measurements on ultracold neutral calcium plasmas. For a self-similar expansion, the fluid equations are solved both analytically and numerically. The density and velocity solutions are used to predict fluorescence signals induced by a laser beam weakly focused into the plasma. Despite the simplicity of the model, predicted fluorescence signals reproduce major features of the experimental data.