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Experimental Observation of Simultaneously Existing Moving and Standing Patterns in a Gas‐Discharge System
Author(s) -
Willebrand H.,
Matthiessen K.,
Niedernostheide F.J.,
Dohmen R.,
Purwins H.G.
Publication year - 1992
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150320202
Subject(s) - homogeneous , electric discharge in gases , supercritical fluid , mechanics , physics , materials science , statistical physics , thermodynamics , quantum mechanics
In a quasi 1‐dimensional lateral gas‐discharge system we observe experimentally sub‐ and supercritical bifurcations from a spatially homogeneous to an inhomogeneous distribution of the current density. Among other results we find for the first time the simultaneous existence of a nontrivial nonstationary pattern (travelling waves) with a nontrivial stationary pattern (periodic filaments) in a laterally extended dc‐driven gas‐discharge system.