High-order harmonic generation of CO2 with different vibrational modes in an intense laser field
Du Hui, Zhang Hong-Dan, Zhang Jun, Liu Hai-Feng, Pan Xue-Fei, Guo Jing, Liu Xue-Shen†,
       

The electric fields of the 800 nm laser pulse (red solid line) and corresponding pulse envelope (black dashed line) with (a) τd = 3 fs, (b) τd = 5 fs.