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Efficient Coherent Population Transfer of D2 Molecules by Stark-induced Adiabatic Raman Passage
Tao Wang,Tian-gang Yang,Chun-lei Xiao*,Dong-xu Dai,Xue-ming Yang*
Author NameAffiliationE-mail
Tao Wang State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116024, China  
Tian-gang Yang State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116024, ChinaSchool of Physics and Optoelectric Engineering, Dalian University of Technology, Dalian 116024, China  
Chun-lei Xiao* State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116024, China chunleixiao@dicp.ac.cn 
Dong-xu Dai State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116024, China  
Xue-ming Yang* State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116024, China xmyang@dicp.ac.cn 
Abstract:
Preparation of a high flux of hydrogen molecules in a specific vibrationally excited state is the major prerequisite and challenge in scattering experiments that use vibrationally excited hydrogen molecules as the target. The widely used scheme of stimulated Raman pumping suffers from coherent population return which severely limits the excitation efficiency. Re-cently we successfully transferred D2 molecules in the molecular beam from (v=0, J=0) to (v=1, J=0) level, with the scheme of Stark-induced adiabatic Raman passage. As high as 75% of the excitation efficiency was achieved. This excitation technique promise to be a unique tool for crossed beam and beam-surface scattering experiments which aim to reveal the role of vibrational excitation of hydrogen molecules in the chemical reaction.
Key words:  Stark-induced adiabatic Raman passage, D2, Vibrational excitation, Molecular beam
FundProject:
使用斯塔克诱导的绝热拉曼通道技术实现D2分子的高效相干布居转移
汪涛,杨天罡,肖春雷*,戴东旭,杨学明*
摘要:
使用斯塔克诱导的绝热拉曼通道技术,成功地将分子束中的D2分子从(v=0, J=0)转移至(v=1, J=0). 激发效率达到了75%.该技术将为交叉分子束和分子束-表面散射实验研究氢分子的振动激发对化学反应的影响提供一个独特的工具.
关键词:  斯塔克诱导的绝热拉曼通道技术,振动激发,分子束,化学动力学,分子动态学
DOI:10.1063/1674-0068/26/01/8-12
分类号: