The dynamics of radio-frequency driven atmospheric pressure plasma jets

L. Schaper, Stephan Reuter, J. Waskoenig, Kari Niemi, V. Schulz-von Der Gathen, Timo Gans

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The complex dynamics of radio-frequency driven atmospheric pressure plasma jets is investigated using various optical diagnostic techniques and numerical simulations. Absolute number densities of ground state atomic oxygen radicals in the plasma effluent are measured by two-photon absorption laser induced fluorescence spectroscopy (TALIF). Spatial profiles are compared with (vacuum) ultra-violet radiation from excited states of atomic oxygen and molecular oxygen, respectively. The excitation and ionization dynamics in the plasma core are dominated by electron impact and observed by space and phase resolved optical emission spectroscopy (PROES). The electron dynamics is governed through the motion of the plasma boundary sheaths in front of the electrodes as illustrated in numerical simulations using a hybrid code based on fluid equations and kinetic treatment of electrons.
Original languageEnglish
Article number012013
Pages (from-to)012013-012013-8
Number of pages12006
JournalJournal of Physics: Conference Series
Volume162
DOIs
Publication statusPublished - May 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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