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) Sequence of discharge images obtained using the ICCD camera with different exposure times. The time spans are indicated in each image. A pulse frequency of 10 kHz, duty cycle of 0.2, peak input power of 5 W, and an argon gas flow of 1.0 slm are used.