Low-order harmonic generation of hydrogen molecular ion in laser field studied by the two-state model*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11465016, 11674268, and 11764038).

Du Ling-Ling, Wang Guo-Li, Li Peng-Cheng, Zhou Xiao-Xin
       

(color online) Comparison of the power spectra of obtained from simulations of the two-state model (red dash-dot-dot line) and TDSE (black solid line) for laser peak intensities of (a) 0.5I0, (b) 1.5I0, (c) 2.0I0, (d) 2.5I0.