Theoretical study of the odd–even-order harmonic generation for asymmetric ions in non-Born–Oppenheimer approximation
Yue Sheng-Jun1, 2, Du Hong-Chuan1, 2, †, Wu Hong-Mei1, 2, Xue Shan1, 2, Zhao Jia-Chen1, 2, Hu Bi-Tao1, 2, ‡
(color online) Coulomb potential for H (black solid line), HD (red dashed line), and HeH (blue dashed-dotted line). For H and HD, R = 2.745 a.u. For HeH, R = 3.89 a.u.