THz wave emission from argon in two-color laser field*
Du Ling-Linga), Zhao Song-Fenga), Zhou Xiao-Xina)†, Zhao Zeng-Xiub)‡
       
The THz emission spectra for the mixing laser fields with the fundamental intensity 1 × 1014 W/cm2 and α = 0, α = 0.1, α = 0.3, α = 0.5, α = 0.7, respectively and the phase difference φ = 0(all figures in this paper are log scale).