中国物理B ›› 2016, Vol. 25 ›› Issue (3): 33205-033205.doi: 10.1088/1674-1056/25/3/033205
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
Xin Cui(崔鑫), Di-Yu Zhang(张頔玉), Gao Chen(陈高), Ji-Gen Chen(陈基根), Si-Liang Zeng(曾思良), Fu-Ming Guo(郭福明), Yu-Jun Yang(杨玉军)
Xin Cui(崔鑫)1,2, Di-Yu Zhang(张頔玉)1,2, Gao Chen(陈高)3, Ji-Gen Chen(陈基根)4, Si-Liang Zeng(曾思良)5, Fu-Ming Guo(郭福明)1,2, Yu-Jun Yang(杨玉军)1,2
摘要:
We demonstrate that the interference minima in the linear molecular harmonic spectra can be accurately predicted by a modified two-center model. Based on systematically investigating the interference minima in the linear molecular harmonic spectra by the strong-field approximation (SFA), it is found that the locations of the harmonic minima are related not only to the nuclear distance between the two main atoms contributing to the harmonic generation, but also to the symmetry of the molecular orbital. Therefore, we modify the initial phase difference between the double wave sources in the two-center model, and predict the harmonic minimum positions consistent with those simulated by SFA.
中图分类号: (Multiphoton ionization and excitation to highly excited states)