The influence of field-free orientation on the predissociation dynamics of the NaI molecule
作者单位：School of Physics and Optoelectronic TechnologyDalian University of Technology
会议名称：《第五届全国计算原子与分子物理学术会议》
会议日期：2014年
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
基 金：supported by Specialized Research Fund for the Doctoral Program of Higher Education(No.20130041120053) SRF for ROCS,SEM,Science and Technology Research Funds of the Department of Education of Liaoning Province(L2013014) the Fundamental Research Funds for the Central Universities[DUT12RC(3)60] the National Magnetic Confinement Fusion Science Program(No.2013GB109005) the National Natural Science Foundation of China(NNSFC)under Grant Nos.10974024 and 11274056
摘 要：The orientation and predissociation dynamics of the NaI molecule are studied by using a time-dependent wavepacket method.[1]The Nal molecule is first pre-oriented by a single-cycle pulse（SCP）in terahertz（THz）region and then predissociated by a femtosecond pump pulse.[2]The influence of the molecular field-free orientation on the predissociation dynamics is studied in *** calculate the radial and angular distributions,the molecular orientation degrees,and the time-dependent populations for both the ground and excited electronic *** is found that the pre-orientation affects the angular distributions significantly,as shown in Fig.1,and that it has weak influence on the radial *** varying the delay time between the THz SCP and the pump pulse,the angular distribution of the fragments from the predissociation can be manipulated.