Journal
PHYSICS OF PLASMAS
Volume 20, Issue 11, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4828720
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Funding
- National Natural Science Foundation of China [11165012]
- China Postdoctoral Science Foundation [2011M501494, 2012T50831]
- Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province
- Northwest Normal University [NWNU-LKQN-11-9]
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An atmospheric pressure plasma jet is generated by dual sinusoidal wave (50 kHz and 2 MHz). The dual-frequency plasma jet exhibits the advantages of both low frequency and radio frequency plasmas, namely, the long plasma plume and the high electron density. The radio frequency ignition voltage can be reduced significantly by using dual-frequency excitation compared to the conventional radio frequency without the aid of the low frequency excitation source. A larger operating range of alpha mode discharge can be obtained using dual-frequency excitation which is important to obtain homogeneous and low-temperature plasma. A larger controllable range of the gas temperature of atmospheric pressure plasma could also be obtained using dual-frequency excitation. (C) 2013 AIP Publishing LLC.
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