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) The populations of states |ϕ₁⟩ (P₁, red dash-dot-dot line) and |ϕ₂⟩ (P₂, black solid line) as a function of emission time in different laser fields. (a)–(f) The parameters used are the same as those in Fig. 1.