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

作     者：庞玉慧 王彬彬 韩永昌 丛书林 牛英煜 

作者机构：大连理工大学物理与光电工程学院大连116024 大连交通大学理学院大连116028 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2016年第29卷第3期

页      面：297-302,I0001页

核心收录：

学科分类：07[理学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：国家教育部高等学校博士学科点专项科研基金 国家教育部留学回国人员科研启动基金 国家教育部项目 the Science and Technology Research Funds of the Department of Education of Liaoning Province Liaoning Bai-qian Wan Talents Program the National Magnetic Confinement Fusion Science Program the Fundamental Research Funds for the Central Universities 国家自然科学基金 

主　　题：Population transfer Two-photon resonance transition Isotope effects DF 

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.