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Void and cloud patterns in a dusty plasma

机译：尘土飞扬的等离子体中的空隙和云状图案

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摘要

Voids and complex cloud patterns have been observed in a radio frequency (rf) discharge dusty plasma system. The structures and behaviors of these patterns were investigated in two- and three-dimensions by shifting an illumination laser sheet beam up and down. Two-dimensional (2D) circular voids, thin ring voids, and their coexistent voids were observed at the early stage of particle growth. The corresponding three-dimensional (3D) structures were dome, shell, and their coexistent voids, respectively. The complex fluid-like cloud patterns occurred above the 3D dome voids. The origin and evolution process of the complex dust cloud patterns need a further theoretical explanation.
机译：在射频（rf）放电尘土等离子体系统中已经观察到空隙和复杂的云状图案。通过上下移动照明激光片光束，以二维和三维方式研究了这些图案的结构和行为。在粒子生长的早期阶段观察到了二维（2D）圆形空隙，薄环空隙以及它们共存的空隙。相应的三维（3D）结构分别是穹顶，外壳和它们共存的空隙。复杂的流体状云模式出现在3D穹顶空隙上方。复杂尘埃云模式的起源和演化过程需要进一步的理论解释。

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