Spatiotemporally controllable plasma lattice structures in dielectric barrier discharge

Fan, Weili and Sheng, Zhengming and Dang, Wei and Liang, Yueqiang and Gao, Kuangya and Dong, Lifang (2019) Spatiotemporally controllable plasma lattice structures in dielectric barrier discharge. Physical Review Applied, 11 (6). 064057. ISSN 2331-7043 (

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A method to generate spatiotemporally controllable plasma lattice structures via dielectric barrier discharge is proposed by utilizing a latticed water electrode. A variety of plasma lattice structures including triangle, hexagon, honeycomb, and complex superlattices are obtained by changing three parameters including the applied voltage, the gas pressure, and the gas compositions. Moreover, these plasma lattices can be quickly reconstructed, allowing for active control both in space and time. Two-dimensional particle-in-cell simulations are carried out to demonstrate the formation of plasma structures under different voltages, which are in good agreement with experimental observations. Our method provides a unique way for the fabrication of controllable plasma lattice structures, which may enable tunable control of microwave radiation for wide applications.