From short pulses to short breaks : exotic plasma bullets via residual electron control

Xian, YuBin, Zhang, Peng, Lu, XinPei, Pei, XueKai, Wu, ShuQun, Xiong, Qing, & Ostrikov, Kostya (2013) From short pulses to short breaks : exotic plasma bullets via residual electron control. Scientific Reports, 3(1599).

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Plasma plumes with exotically segmented channel structure and plasma bullet propagation are produced in atmospheric plasma jets. This is achieved by tailoring interruptions of a continuous DC power supply over the time scales of lifetimes of residual electrons produced by the preceding discharge phase. These phenomena are explained by studying the plasma dynamics using nanosecond-precision imaging. One of the plumes is produced using 2-10μs interruptions in the 8kV DC voltage and features a still bright channel from which a propagating bullet detaches. A shorter interruption of 900ns produces a plume with the additional long conducting dark channel between the jet nozzle and the bright area. The bullet size, formation dynamics, and propagation speed and distance can be effectively controlled. This may lead to micrometer-and nanosecond-precision delivery of quantized plasma bits, warranted for next-generation health, materials, and device technologies.

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22 citations in Scopus
20 citations in Web of Science®
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ID Code: 73549
Item Type: Journal Article
Refereed: Yes
DOI: 10.1038/srep01599
ISSN: 2045-2322
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: 2013 The Author(s)
Copyright Statement: This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit
Deposited On: 08 Jul 2014 23:37
Last Modified: 19 Dec 2016 01:31

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