Isotope Effects on Two-Photon Population Transfer Processes of HF and DF  

HF和DF分子双光子布居转移过程中的同位素效应

作　　者：庞玉慧 王彬彬[1] 韩永昌[1] 丛书林[1] 牛英煜[2] 

机构地区：[1]大连理工大学物理与光电工程学院,大连116024 [2]大连交通大学理学院,大连116028

出　　处：《Chinese Journal of Chemical Physics》2016年第3期297-302,I0001,共7页化学物理学报（英文）

摘　　要：The isotope effects of XF （X=H, D） on the population transfer process via two-photon resonance excitation are investigated by solving the time-dependent SchrSdinger equation. The vibrational levels v=0 and 2 of the ground electronic state are taken to be the initial and target states, respectively, for the two molecular systems. The influences of the field peak amplitude and pulse duration on the population transfer process are discussed in detail. The pulse duration is required to be longer than 860 fs for the DF molecule to achieve a relatively high transfer probability （more than 80%）, while the one for the HF molecule is just required to be longer than 460 fs. Moreover, the intermediate level v=1 and the higher level v=3 may play more important roles in the two-photon resonance process for the DF molecule, compared to the roles in the process for the HF molecule.

关 键 词：Population transfer Two-photon resonance transition Isotope effects DF 

分 类 号：O[理学]