Low-order harmonic generation of hydrogen molecular ion in laser field studied by the two-state model<xref rid="cpb_27_11_113201fn1" ref-type="fn">*</xref><fn id="cpb_27_11_113201fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11465016, 11674268, and 11764038).</p></fn>

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 TDSE (black solid line) and the two-state model (red dash-dot-dot line) in laser fields with wavelengths of (a) 400 nm, (b) 600 nm, (c) 800 nm, (d) 1000 nm, (e) 1200 nm, and (f) 1400 nm. The laser intensity is 1 × 10¹⁴ W/cm² in all cases.