Square superlattice pattern in dielectric barrier discharge

Abstract

We report the observation of a square superlattice pattern in a dielectric barrier discharge system. The correlation measurements indicate that the square superlattice pattern is an interleaving of two different transient square sublattices. The interplay between the charge pattern and the discharge filament pattern is discussed.

Turing patterns in the chlorine dioxide–iodine–malonic acid reaction with square spatial periodic forcing

“…Unlike the rhombic and superlattice hexagonal patterns, the square superlattice TP were found to be rather short-lived, as they evolved into labyrinthine patterns soon after the forcing was removed. 17 Square patterns emerge in a variety of experiments on nonequilibrium systems, including Faraday waves, 20,21 Marangoni-Be´nard [22][23][24] and Rayleigh-Be´nard convection, [25][26][27][28] as well as in dielectric barrier discharges, 29 but not in reaction-diffusion systems. The role of temporally constant, one-dimensional periodic forcing was recently investigated in thermal convection patterns 30 and in the Swift-Hohenberg model.…”

Numerical simulations of pattern evolution of shear bands during pure shear of geomaterials

“…Any two neighboring cells are always at different phases. This is a square superlattice pattern which has been observed in a dielectric barrier discharge system (Dong et al, 2006 pattern is an interleaving of two different square sublattices which can be viewed as the half phased superposition of two square sublattices. The square superlattice pattern occurring in this case is unstable and is finally replaced by the strip pattern.…”

Gap-dependent transitions of atmospheric microplasma in open air

“…[1][2][3][4][5][6][7][8][9][10][11][12] They are operated under different geometries of the electrodes, dielectric layer material, relative electrode distance, working ambient gas, pressure, temperature, driving voltage, waveform, and frequency. [10][11][12] For example, microplasmas have been observed in filamentary discharge [3][4][5]8,9 and uniform diffuse discharge. 3,8,9,12 Filamentary microdischarges are found in random motion and spatially fixed.…”