Concentric superlattice pattern in dielectric barrier discharge

The concentric superlattice pattern with three sub-lattices is observed in the dielectric barrier discharge in air/argon for the first time. Its spatiotemporal structure investigated by an intensified charge-coupled device shows that it is an interleaving of three different sub-lattices, which are c...

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Bibliographic Details
Published in:Physics of plasmas 2016-09, Vol.23 (9)
Main Authors: Feng, Jianyu, Dong, Lifang, Wei, Lingyan, Fan, Weili, Li, Caixia, Pan, Yuyang
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AIR
ARGON
CHARGE-COUPLED DEVICES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Dielectric barrier discharge
DIELECTRIC MATERIALS
Dielectrics
DISTRIBUTION
EMISSION SPECTRA
FILAMENTS
Lattices
PLASMA
Plasma physics
RINGS
SUPERLATTICES
WALLS
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Summary:The concentric superlattice pattern with three sub-lattices is observed in the dielectric barrier discharge in air/argon for the first time. Its spatiotemporal structure investigated by an intensified charge-coupled device shows that it is an interleaving of three different sub-lattices, which are concentric-ring, concentric-framework, and concentric-dot, respectively. The images of single-frame indicate that the concentric-ring and concentric-framework are composed of individual filaments. By using the optical emission spectrum method, it is found that plasma parameters of the concentric-dot are different from those of the concentric-ring and concentric-framework. The spatiotemporal dynamics of the concentric superlattice pattern is dependent upon the effective field of the distribution of the wall charges field and the applied field.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4962176