Air breakdown induced by the microwave with two mutually orthogonal and heterophase electric field components
Zhao Pengcheng †, Guo Lixin ‡
       

(color online) (a) Variation of electron temperature with time. (b) Variation of electron density with time. P = 760 Torr, f = 2.85 GHz, Exm = Eym=2.5 MV/m, and Δϕ=0, 0.25π, 0.5π, 0.75π.