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Intense and Energetic Atmospheric Pressure Plasma Jet Arrays
Author(s) -
Kim Jae Young,
Ballato John,
Kim SungO
Publication year - 2012
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201100190
Subject(s) - plasma , jet (fluid) , atmospheric pressure plasma , atomic physics , coupling (piping) , collimated light , plasma parameters , materials science , physics , optics , laser , mechanics , nuclear physics , metallurgy
Intense and energetic atmospheric plasma emissions were achieved by direct jet‐to‐jet coupling using honeycomb‐structured quartz tube arrays. Two plasma modes were found to exist in the same plasma array structure under a change of gas flow conditions: an intense plasma mode and the well‐collimated plasma mode. In order to describe the direct jet‐to‐jet coupling by electrical coupling of charged particles in the plasma, the optical emission of the plasma array was compared with that of a single tube plasma jet. Under identical electrical driving and gas conditions, the optical intensity from the intense plasma jet was approximately four times larger in the coupled array than in the single plasma jet structure. Additionally, the electron energy in the intense plasma was larger than that of the well‐collimated plasma jets in the same device. This intense and energetic plasma jet, arising through direct jet‐to‐jet coupling, may provide novel applications requiring strong discharge processes using simplified structures and accompanying instrumentation when compared with the present vacuum plasma systems.