Organization of Dielectric Barrier Discharges in the Presence of Structurally Inhomogeneous Wood Substrates

The spatial organization of atmospheric-pressure plasmas controlled by dielectric barriers in the presence of complex wood substrates was analyzed using optical imaging and current-voltage (I-V) characteristics. While all wood species investigated yielded homogeneous-like I-V characteristics, the structural inhomogeneities of selected wood species produced nonuniform light emission patterns with less intense emission on early versus late wood sections.