Spatially resolved surface-charge measurement in a planar dielectric-barrier discharge system

We investigate a laterally extended dielectric helium discharge system with plane electrodes. The system is operated in the glow mode and is known to exhibit a rich variety of self-organized lateral patterns in the current distribution, most of them being filamentary. It is known from theory that su...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2007-06, Vol.98 (25), p.255001-255001, Article 255001
Main Authors: Stollenwerk, L, Laven, J G, Purwins, H-G
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigate a laterally extended dielectric helium discharge system with plane electrodes. The system is operated in the glow mode and is known to exhibit a rich variety of self-organized lateral patterns in the current distribution, most of them being filamentary. It is known from theory that surface charges on the dielectrics play a major role for the emerging patterns. In this work we present a method to measure the spatial charge distribution on the dielectrics via the Pockels effect of a bismuth-silicon-oxide crystal. The experimental results of the surface-charge distribution measurements are in good agreement with previous numerical solutions of the corresponding transport equations.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.98.255001