Temporal evolution of atmosphere pressure plasma jets driven by microsecond pulses with positive and negative polaritiesTao Shao, Wenjin Yang, Cheng Zhang, Zhi Fang, Yixiao Zhou and Edl SchamilogluEPL, 107 6 (2014) 65004DOI: https://doi.org/10.1209/0295-5075/107/65004