Multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields
Li Peng-Cheng1, 2, †, Chu Shih-I3
       

(a) and (c) Evolution of harmonic intensities in space for the 7th order harmonic (7H) and the 15th order harmonic (15H) of H2 molecules obtained from the mac TDDFT in an 800-nm laser field. The laser peak intensity in the center of gas jet is I = 8.0×1013 W/cm2, the pulse length is 20 optical cycles with cos2 pulse shape. (b) and (d) The corresponding phase difference of the HHG.