Controlled microdroplet transport in an atmospheric pressure microplasma

Paul Maguire, CMO Mahony, Colin Kelsey, AJ Bingham, EP Montgomery, ED Bennet, HE Potts, DCE Rutherford, D A McDowell, DA Diver, D Mariotti

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)
112 Downloads (Pure)


We report the controlled injection of near-isolated micron-sized liquid droplets into a low temperature He-Ne steady-state rf plasma at atmospheric pressure. The H2O droplet stream is constrained within a 2 mm diameter quartz tube. Imaging at the tube exit indicates a log-normal droplet size distribution with an initial count mean diameter of 15lm falling to 13lm with plasma exposure. The radial velocity profile is approximately parabolic indicating near laminar flow conditions with the majority of droplets travelling at>75% of the local gas speed and having a plasma transit time of
Original languageEnglish
Pages (from-to)224101
JournalApplied Physics Letters
Issue number22
Early online date1 Jun 2015
Publication statusPublished online - 1 Jun 2015


  • Atmospheric pressure plasmas


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