This paper describes a microwave plasma jet in an argon atmosphere capable of generating filamentary streamer discharges within the entire quartz tube excited by surface waves of surface plasmon polaritons (SPPs) located in the tube. Several discharge streamers are immediately produced at the end of the copper wire when incident power reaches 20 W. From simulations, the wavelength of the surface wave was found to be approximately 5.7 cm. Although the developing streamers induce E-field enhancements favoring discharging, more streamer bifurcations requiring additional energy to maintain discharging diminish the resonant enhanced E-field. The underlying mechanism of the proposed plasma jet is resonant excitation of SPPs and its interaction with plasmas.

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Multi-band microwave metamaterial absorber based on coplanar Jerusalem crosses *Wang Guo-Dong(王国栋) a) , Liu Ming-Hai(刘明海) a) † , Hu Xi-Wei(胡希伟) a)b) , Kong Ling-Hua(孔令华) a) , Cheng Li-Li(程莉莉) b) , and Chen Zhao-Quan(陈兆权) c) a) State