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Chin. Phys. B, 2015, Vol. 24(10): 105102    DOI: 10.1088/1674-1056/24/10/105102

Effect of microwave frequency on plasma formation in air breakdown at atmospheric pressure

Zhao Peng-Cheng (赵朋程), Guo Li-Xin (郭立新), Li Hui-Min (李慧敏)
School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China
Abstract  Microwave breakdown at atmospheric pressure causes the formation of a discrete plasma structure. The one-dimensional fluid model coupling Maxwell equations with plasma fluid equations is used to study the effect of the microwave frequency on the formation of air plasma. Simulation results show that, the filamentary plasma array propagating toward the microwave source is formed at different microwave frequencies. As the microwave frequency decreases, the ratio of the distance between two adjacent plasma filaments to the corresponding wavelength remains almost unchanged (on the order of 1/4), while the plasma front propagates more slowly due to the increase in the formation time of the new plasma filament.
Keywords:  microwave frequency      plasma formation      air breakdown      electron fluid model  
Received:  20 January 2015      Revised:  13 April 2015      Accepted manuscript online: 
PACS:  51.50.+v (Electrical properties)  
  52.80.Pi (High-frequency and RF discharges)  
  52.35.Mw (Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))  
Fund: Project supported by the Fundamental Research Funds for the Central Universities, China and the National Natural Science Foundation of China (Grant No. 61501358).
Corresponding Authors:  Zhao Peng-Cheng     E-mail:

Cite this article: 

Zhao Peng-Cheng (赵朋程), Guo Li-Xin (郭立新), Li Hui-Min (李慧敏) Effect of microwave frequency on plasma formation in air breakdown at atmospheric pressure 2015 Chin. Phys. B 24 105102

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