Disrupting the spatio-temporal symmetry of the electron dynamics in atmospheric pressure plasmas by voltage waveform tailoring

Andrew Robert Gibson, Zoltán Donkó, Layla Ahmed A Alelyani, Lena Bischoff, Gerrit Hübner, Jerome Bredin, Scott James Doyle, Ihor Korolov, Kari Niemi, Thomas Mussenbrock, Peter Hartmann, James Peter Dedrick, Julian Schulze, Timo Gans, Deborah O'Connell

Research output: Contribution to journalArticlepeer-review


Single frequency, geometrically symmetric Radio-Frequency (RF) driven atmospheric pressure plasmas exhibit temporally and spatially symmetric patterns of electron heating, and consequently, charged particle densities and fluxes. Using a combination of phase-resolved optical emission spectroscopy and kinetic plasma simulations, we demonstrate that tailored voltage waveforms consisting of multiple RF harmonics induce targeted disruption of these symmetries. This confines the electron heating to small regions of time and space and enables the electron energy distribution function to be tailored.

Original languageEnglish
Article number01LT01
Number of pages7
JournalPlasma Sources Science and Technology
Issue number1
Early online date30 Nov 2018
Publication statusPublished - 7 Jan 2019

Bibliographical note

© 2019 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.


  • atmospheric pressure plasmas
  • electron energy distribution functions
  • electron heating
  • particle-in-cell simulations
  • phase-resolved optical emission spectroscopy
  • radio-frequency plasmas
  • voltage waveform tailoring

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