| HF和DF分子双光子布居转移过程中的同位素效应 |
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| 引用本文： | 庞玉慧,王彬彬,韩永昌,丛书林,牛英煜.HF和DF分子双光子布居转移过程中的同位素效应[J].化学物理学报,2016,29(3):297-302. |
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| 作者姓名： | 庞玉慧 王彬彬 韩永昌 丛书林 牛英煜 |
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| 作者单位： | 大连理工大学物理与光电工程学院, 大连 116024,大连理工大学物理与光电工程学院, 大连 116024,大连理工大学物理与光电工程学院, 大连 116024,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 |
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| 基金项目： | This work is supported by the Specialized Research Fund for the Doctoral Program of Higher Education (No.20130041120053), Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry, the Science and Technology Research Funds of the Department of Education of Liaoning Province (No.L2013014), Liaoning Bai-qian Wan Talents Program, the National Magnetic Confinement Fusion Science Program (No.2013GB109005), the Fundamental Research Funds for the Central Universities (No.DUT15YQ105), and the National Natural Science Foundation of China (No.21473018, No.11274056, and No.11347012). |
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| 摘 要： | 通过求解含时薛定谔方程,研究了XF(X=H,D)分子体系双光子共振条件下布居转移过程中的同位素效应.对于这两个分子体系,基电子态上的振动能级v=0和v=2被考虑成初始态和目标态.详细讨论了激光场峰值强度和脉冲持续时间对布居转移过程的影响.脉冲持续时间需要长于860 fs才能保证DF分子体系可以获得较为显著的布居转移几率(大于80%),而对于HF分子体系,该参数只需长于460 fs.与HF分子体系相比,中间态v=1和较高的v=3振动态会对DF分子体系的双光子共振布居转移过程产生更重要的影响.
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| 关 键 词： | 布居转移 双光子共振跃迁 同位素效应 氟化氘 |
| 收稿时间： | 9/2/2015 12:00:00 AM |
| 修稿时间： | 2016/1/13 0:00:00 |
Isotope E ects on Two-Photon Population Transfer Processes of HF and DF |
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| Yu-hui Pang,Bin-bin Wang,Yong-chang Han,Shu-lin Conga and Ying-yu Niu.Isotope E ects on Two-Photon Population Transfer Processes of HF and DF[J].Chinese Journal of Chemical Physics,2016,29(3):297-302. |
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| Authors: | Yu-hui Pang Bin-bin Wang Yong-chang Han Shu-lin Conga and Ying-yu Niu |
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| Affiliation: | School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China,School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China,School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China,School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China and School of Science, Dalian Jiaotong University, Dalian 116028, China |
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| Abstract: | 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 Schrödinger equation. The vibrational 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 v =1 and the higher 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. |
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| Keywords: | Population transfer Two-photon resonance transition Isotope effects DF |
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