Experimental study and simulation of a micro-discharge with limited   cathode area
  We report in this paper simulation results and experimental measurements to characterize a micro-discharge generated in a single micro cavity device operating in helium. By spatially limiting the cathode surface area using a dielectric layer, we demonstrate the ability of the micro-discharge to work in a steady-state abnormal glow regime. The physical properties of this regime are discussed. 
Thierry Dufour (GREMI), Lawrence J. Overzet (PSAL), Remi Dussart   (GREMI), L. C. Pitchford (CPAT), N Sadeghi, P Lefaucheux ...
physics.plasm-ph