THz wave emission from argon in two-color laser field*
Du Ling-Linga), Zhao Song-Fenga), Zhou Xiao-Xina)†, Zhao Zeng-Xiub)‡
       
The emission spectra of the transition matrix element calculated from (a) the adjacent eigenstates and (b) the separate eigenstates for the laser field ε ( t ) = E 0 f ( t )[cos( ωt ) + 0.3cos(2 ωt )].