Characteristic plume morphologies of atmospheric Ar and He plasma jets excited by a pulsed microwave hairpin resonator
Chen Zhao-Quan1, †, Zhou Ben-Kuan1, Zhang Huang1, Hong Ling-Li1, Zou Chang-Lin1, Li Ping1, Zhao Wei-Dong1, Liu Xiao-Dong1, Stepanova Olga2, Kudryavtsev A A2
       

(color online) A group of discharge images obtained by ICCD camera with the different exposure times. The discharge conditions are the same as those for Fig. 2 except using He gas instead of Ar gas.