title: Guiding DC glow discharge in microchannels.
abstract: This work describes the conditions, in terms of dimensions and geometry, to guide a dc glow discharge preferentially through a microchannel in simple networks. Two- and three-channel microfluidic structures were studied. A preference towards a wider channel, in a two-channel network, was observed when the difference in width was at least 18% and the length was at least 10 mm. In a three-channel structure, a change in glow discharge intensity was observed when the network was downscaled from a pathlength of 2 to 0.5 cm. While the intensity within the path with fewer turns decreased with a reduction in size, the intensity of the path with greater number of turns increased.
authors.affiliation: Department of Chemistry, Imperial College of Science, Technology and Medicine, London, UKSW7 2AY.
authors.forename: Joan
authors.initials: J
authors.lastname: Lim
authors.forename: Darwin R
authors.initials: DR
authors.lastname: Reyes
authors.forename: Andreas
authors.initials: A
authors.lastname: Manz