二维晶格势中的介质阻挡放电
Dielectric-barrier discharges in two-dimensional lattice potentials
摘要：
采用针栅电极在平面介质阻挡放电（DBD）系统中引入波纹电位，使外加电场幅值具有二维正方形点阵的轮廓。晶格势为系统中等离子体细丝的空间分布提供了模板，并对可以形成的图案具有显著的影响。细丝在晶格晶胞内变得局部化的位置随着放电间隙的宽度而变化。当细丝在晶格中填充过度或填充不足时出现的图案让人想起在其他涉及二维晶格的物理系统中观察到的图案。我们认为，晶格驱动的介质阻挡放电和物理学的其他领域之间的联系可能会受益于进一步发展的模型，处理相互作用的粒子等离子体细丝。
英文摘要：
We use a pin-grid electrode to introduce a corrugated electrical potential into a planar dielectric-barrier discharge (DBD) system, so that the amplitude of the applied electric field has the profile of a two-dimensional square lattice. The lattice potential provides a template for the spatial distribution of plasma filaments in the system and has pronounced effects on the patterns that can form. The positions at which filaments become localized within the lattice unit cell vary with the width of the discharge gap. The patterns that appear when filaments either overfill or under-fill the lattice are reminiscent of those observed in other physical systems involving 2d lattices. We suggest that the connection between lattice-driven DBDs and other areas of physics may benefit from the further development of models that treat plasma filaments as interacting particles.
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