Cover Picture: Contrib. Plasma Phys. 2/2019

Apparatus with the metallic grid for cometary discharge generation and sample exposure. Fig. 2 of the paper by Eva Vaňková et al.     

Cover Picture: Contrib. Plasma Phys. 3/2019

Spark discharge images from ignition to extinction in air. The colour scale only refers to the spark discharge light intensity. Fig. 5 of the paper by M. Sankhé et al.     

Cover Picture: Contrib. Plasma Phys. 7/2019

Scheme of the atomic structure of (a) graphene and (b) reduced graphene oxide (rGO). (c,d) Optical microscopy image of the target surface of (c) rGO and (d) Au/rGO. (d,e) Atomic force microscopy (AFM) images of two particular areas of the rGO surface (e, f). Fig. 1 of the paper by L. Torrisi et al.     

Cover Picture: Contrib. Plasma Phys. 6/2019

Average double occupation of the lattice electrons during the impact of a proton on a 54‐site honeycomb for different initial kinetic indicated on the y‐axis. The x‐axis contains the current height of the proton (impacting from the left) above the cluster plane. Since the projectile velocity is almost constant, the height is a measure of time. Fig. 2f of the paper by N. Schlünzen et al.     

Cover Picture: Contrib. Plasma Phys. 9/2019

Typical discharge images of multi‐arcs in the arc chamber (for every arc, gas flow rate: 10 slm, discharge power: 450 W). Note that timing starts from forming three independent arcs in the arc chamber. Fig. 3 of the paper by Q.F. Lin et al.     

Cover Picture: Contrib. Plasma Phys. 10/2019

Contour plots showing the field amplitude for a negatively chirped, un‐chirped, and positively chirped pulse after propagating a certain distance in an underdense plasma. Note that all the subfigures have the same scale for the transverse and longitudinal axes as that shown for the bottom four subfigures. Fig. 1 of the paper by Gang Li et al.     

Cover Picture: Contrib. Plasma Phys. 1/2014

Ground‐state configurations (densities) of N = 19 charged particles in a 2D harmonic trap with different coupling strengths. Crystal‐like state at strong coupling with quantum mechanical finite extensions of the particles(low density). (Figure 1b of the paper by J.W. Abraham and M. Bonitz)     

Cover Picture: Contrib. Plasma Phys. 1/2012

In this figure, the dynamics of the potential field in an improved trap for the value ωt = 3/4π is shown. Dark regions correspond to potential wells attracting the dust particles while the light ones are related to potential hills repulsing the dust particles. (Figure 2 of the paper by V. S. Filinov, et al.)     

Cover Picture: Contrib. Plasma Phys. 1/2017

Sequence of the high speed photos showing the process of the long spark gap breakdown with a gap distance of 7 cm. Figure 10 of the paper by D. Huang et al.     

Cover Picture: Contrib. Plasma Phys. 1/2016

Time evolution of the density of a two‐dimensional fermionic Hubbard system, from left to right in steps of Δt = 1. The first three rows correspond to U = 1 and different particle numbers N = 2; 26; 72. The last row belongs to N = 72 and U = 4. The results are obtained from two‐time T‐matrix calculations. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

Cover Picture: Contrib. Plasma Phys. 9/2012

SEM micrograph of a preliminary result of Si etching profile obtained for alternatively intermittent flow recipe at condition of 60% SF₆/40% CH₄ duty cycle (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

Cover Picture: Contrib. Plasma Phys. 10/2011

The spatial distribution of plasma parameters such as equipotential line, ion density n_i, and radial ion velocity V_ir for the low‐emissive segmented dielectric wall case, L = 3 mm. (Figure 5 of the paper by D. R. Yu, et al.)     

Cover Picture: Contrib. Plasma Phys. 2/2016

Images of the plasma jet in a 500 μm quartz tube at F_r = 20, 100 and 500 sccm and at V_A = 20 kV. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

Cover Picture: Contrib. Plasma Phys. 2/2017

Fast framing camera images of He/Ar mixture plasmas observed with a high‐speed camera. Figure 8 of the paper by T. Onda et al.