Theoretical investigation on generating terahertz radiation from gas plasma induced by three-color ultrashort lasers
Wang Cheng-Liang
a)
, Yang Zhen-Gang
b)
, Liu Jin-Song
a)
, Wang Sheng-Lie
b)
, Wang Ke-Jia†
a)
Laser electric fields versus time in one cycle of case (ii) (blue line), case (ii) (green line), and case (iii) (red line).