Journal of Applied Physics
Nonequilibrium plasmas driven by submicrosecond high voltage pulses have been proven to produce high-energy electrons, which in turn lead to enhanced ionization and excitations. Here, we describe a device capable of launching a cold plasma plume in the surrounding air. This device, "the plasma pencil," is driven by few hundred nanosecond wide pulses at repetition rates of a few kilohertz. Correlation between current-voltage characteristics and fast photography shows that the plasma plume is in fact a small bulletlike volume of plasma traveling at unusually high velocities. A model based on photoionization is used to explain the propagation kinetics of the plasma bullet under low electric field conditions.
Original Publication Citation
Lu, X., & Laroussi, M. (2006). Dynamics of an atmospheric pressure plasma plume generated by submicrosecond voltage pulses. Journal of Applied Physics, 100(063302), 1-6. doi: 10.1063/1.2349475
Lu, XinPei and Laroussi, Mounir, "Dynamics of an Atmospheric Pressure Plasma Plume Generated by Submicrosecond Voltage Pulses" (2006). Electrical & Computer Engineering Faculty Publications. 15.
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