Striped superlattice pattern in dielectric barrier discharge

Feng, Jianyu; Pan, Yuyang; Li, Caixia; Liu, Binbin; Dong, Lifang

doi:10.1063/1.5145253

Cited by 6 publications

(4 citation statements)

References 28 publications

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“…To obtain the distinct structure of the pattern, integrated photographs over multi-cycles are usually utilized first. Equally, the instantaneous photographs obtained in one voltage cycle are indispensable for getting to know the essential attributes of the patterns [22,26]. Hence, the photographs in one voltage cycle whose exposure time consistent with the results obtained with ICCD.…”

Section: Resultssupporting

confidence: 70%

“…In recent years, the DBD system, known for its incredible accessibility and utility for experimental devices, has been verified as an amazing and preferred system for the investigation of pattern dynamics, because it exhibits an exceptionally great variety and abundance of self-organized patterns [16][17][18][19][20][21][22][23]. Due to the luminous intensity, there not only exist visible discharge filaments to the naked eye or an ordinary camera, which is called normal discharge, but also discharge filaments exist that are invisible to the naked eye or an ordinary camera, which called dark discharge in the DBD system.…”

Section: Introductionmentioning

confidence: 99%

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Formation of honeycomb-Kagome hexagonal superlattice pattern with dark discharges in dielectric barrier discharge

Pan

Feng²,

Li³

et al. 2022

Plasma Sci. Technol.

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A honeycomb-Kagome hexagonal superlattice pattern with dark discharges is observed in dielectric barrier discharge (DBD) system for the first time. The spatiotemporal structure of the honeycomb-Kagome hexagonal superlattice pattern with dark discharges investigated by an intensified charge-coupled device (ICCD) and the photomultipliers (PMTs) shows that it is an interleaving of three different sub-lattices, which are bright-spot, invisible honeycomb lattice, and Kagome lattice with invisible frameworks and dim-spots, respectively. The invisible honeycomb lattices and Kagome lattices are actually composed of the dark discharges. By using optical emission spectra method, it is found that the plasma parameters of the three different sub-lattices are different. The influence of the dark discharges on the pattern formation is discussed. The results maybe have significance for the investigation of the dark discharges and will accelerate the development of the self-organized pattern dynamics.

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Section: Resultssupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Formation of honeycomb-Kagome hexagonal superlattice pattern with dark discharges in dielectric barrier discharge

Pan

Feng²,

Li³

et al. 2022

Plasma Sci. Technol.

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“…In 2020, Feng et al discovered a stripe superlattice pattern consisting of three different sublattices in the DBD system. 13 Here, we report a (bright spots)-(dark spots)-halo stripe pattern (BDHSP) in the DBD system. The direction of the stripe choose to form is related to the directional selective surface discharge of the pattern, which appears before the evolution to BDHSP.…”

Section: Introductionmentioning

confidence: 84%

“…[3][4][5][6][7] Various luminescent patterns have been obtained, such as square patterns, hexagonal patterns, honeycomb patterns, and stripe patterns. [8][9][10][11][12][13] Among them, the stripe pattern has been extensively investigated owing to its typical symmetry. In 1995, Breazeal et al found stripe patterns in the He gas discharge system.…”

Section: Introductionmentioning

confidence: 99%

Intermittent discharge in a complex stripe pattern in dielectric barrier discharge

Li,

Wang,

Pan

et al. 2024

Physics of Plasmas

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The intermittent discharge that filament only discharges once in a cycle rather than once every half-cycle is observed in all the three substructures of the (bright spots)–(dark spots)-halo stripe pattern (BDHSP) in dielectric barrier discharge. The discharge characteristics are investigated by a high-speed video camera, an intensified charge-coupled device camera, and two photomultiplier tubes. It is found that the direction of the stripe choose to form in BDHSP is determined by the direction in which the surface discharge is stronger in the square pattern. The spatiotemporal dynamics results of BDHSP suggest that bright spot (B) discharges in this half-cycle, and the dark spot (D) and the halo (H) discharge in the next half-cycle of the applied voltage, which is intermittent discharge. Combined with the analysis in the electric field simulation, it can be concluded that the intermittent discharge is the result of the mutual influence between the directional selective surface discharge induced by bright spots and dark spots. Overall, the BDHSP is formed by the self-organization of the wall charge under the interaction between the plasma physical processes and the spatial distribution. The discovery of the intermittent discharge provides insight and enlightenment for the study of plasma physics.

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Realization of tunable plasma Lieb lattice in dielectric barrier discharges

et al. 2022

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Lieb lattice has been proved to host various extraordinary properties due to its unique Dirac-flat band structure. However, the realization of tunable Lieb lattices with controllable configurations still remains a significant challenge. We demonstrate the first realization of a robust and tailorable plasma Lieb lattice in dielectric barrier discharges by use of uniquely designed mesh-water electrodes. Fast reconfiguration between square lattice, Lieb lattice, and various Lieb superlattices has been achieved in a wide range of discharge parameters even in ambient air. An active control on the symmetry, size, and fine structures of plasma elements in Lieb lattices is realized. Three distinct discharge stages in plasma Lieb lattice are proposed on the basis of fast camera diagnostics. The Dirac-flat band structure of plasma Lieb lattice is demonstrated. An experimental verification of the photonic band gap for Lieb lattice is provided. Moreover, the Gierer-Meinhardt reaction diffusion model with spatial modulations is established to simulate the formation of different Lieb lattices. Experimental observations and numerical simulations are in good agreement. The results provide an important step forward in the ongoing effort to realize tunable Lieb Lattices, which may find promising applications in the manipulation of microwaves.

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Striped superlattice pattern in dielectric barrier discharge

Cited by 6 publications

References 28 publications

Formation of honeycomb-Kagome hexagonal superlattice pattern with dark discharges in dielectric barrier discharge

Formation of honeycomb-Kagome hexagonal superlattice pattern with dark discharges in dielectric barrier discharge

Intermittent discharge in a complex stripe pattern in dielectric barrier discharge

Realization of tunable plasma Lieb lattice in dielectric barrier discharges

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