Abnormal electron-heating mode and formation of secondary-energetic electrons in pulsed microwave-frequency atmospheric microplasmas
SCIE
SCOPUS
- Title
- Abnormal electron-heating mode and formation of secondary-energetic electrons in pulsed microwave-frequency atmospheric microplasmas
- Authors
- Kwon, HC; Jung, SY; Kim, HY; Won, IH; Lee, JK
- Date Issued
- 2014-03
- Publisher
- AIP
- Abstract
- The formation of secondary energetic electrons induced by an abnormal electron-heating mode in pulsed microwave-frequency atmospheric microplasmas was investigated using particle-in-cell simulation. We found that additional high electron heating only occurs during the first period of the ignition phase after the start of a second pulse at sub-millimeter dimensions. During this period, the electrons are unable to follow the abruptly retreating sheath through diffusion alone. Thus, a self-consistent electric field is induced to drive the electrons toward the electrode. These behaviors result in an abnormal electron-heating mode that produces high-energy electrons at the electrode with energies greater than 50eV. (C) 2014 AIP Publishing LLC.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12627
- DOI
- 10.1063/1.4870005
- ISSN
- 1070-664X
- Article Type
- Article
- Citation
- PHYSICS OF PLASMAS, vol. 21, no. 3, page. 33511, 2014-03
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