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Ultra-short, repetitively pulsed atmospheric-pressure microplasmas

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conference contribution
posted on 2014-11-28, 12:02 authored by James L. Walsh, Felipe IzaFelipe Iza, Wen-Cong Chen, X. Ming, Y.K. Pu
Low‐temperature atmospheric‐pressure plasmas are of great importance in many emerging biomedical and materials processing applications; in recent years there has been a growing interest in short‐pulsed excitation of such plasmas as a gateway to access highly non‐equilibrium discharge chemistry. This contribution employs time‐resolved electrical and optical diagnostics in combination with a time‐hybrid computational model to uncover the physics behind repetitive short pulsed excitation of atmospheric pressure plasma. It is shown that during the applied voltage pulse the peak dissipated power can exceed 1GW/cm3 resulting in electron densities approaching 1017 cm‐3 (~6 orders of magnitude larger than conventional low‐temperature atmospheric discharges) while the gas temperature remains close to room temperature.



  • Mechanical, Electrical and Manufacturing Engineering

Published in

13th International Conference on Plasma Surface Engineering


KN1100 - ?


WALSH, J.L. ... et al, 2012. Ultra-short, repetitively pulsed atmospheric-pressure microplasmas. Presented at: 13th International Conference on Plasma Surface Engineering, 10th-14th September 2012, Garmisch-Partenkirchen, Germany.


European Joint Committee on Plasma and Ion Surface Engineering.


AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date



This paper was presented at PSE 2012 - the 13th International Conference on Plasma Surface Engineering.




Garmisch-Partenkirchen, Germany