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Isotope E ects on Two-Photon Population Transfer Processes of HF and DF
Yu-hui Pang,Bin-bin Wang,Yong-chang Han,Shu-lin Conga,Ying-yu Niu
Author NameAffiliationE-mail
Yu-hui Pang School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China  
Bin-bin Wang School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China  
Yong-chang Han School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China ychan@dlut.edu.cn 
Shu-lin Conga School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China  
Ying-yu Niu School of Science, Dalian Jiaotong University, Dalian 116028, China  
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.
Key words:  Population transfer  Two-photon resonance transition  Isotope effects  DF
FundProject: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).
HF和DF分子双光子布居转移过程中的同位素效应
庞玉慧,王彬彬,韩永昌,丛书林,牛英煜
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.
关键词:  布居转移  双光子共振跃迁  同位素效应  氟化氘
DOI:10.1063/1674-0068/29/cjcp1509186
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