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). |
(color online) The wavelet time-frequency spectra obtained from (a1)–(f1) TDSE and (a2)–(f2) two-state model. (a)–(f) The parameters used are the same as those in Fig. |