Imaging alignment of rotational state-selected CH3I molecule

论文摘要

We experimentally and numerically investigate CH3I molecular alignment by using a femtosecond laser and a hexapole. The hexapole provides the single |111〉rotational state condition at 4.5-kV hexapole rod voltage. Based on this single rotational state, an enhanced alignment degree of 0.73 is achieved. Our experimental results are in agreement with the simulation results. We experimentally obtain the ion velocity map images and show the influence of the initial rotational-state population. With the I+ion images and angular distributions at different pump-probe delay time, the alignment and anti-alignment phenomena are further demonstrated. The molecules will be under field-free conditions when the laser effect disappears completely at the full revival time. Our work shows that the quantum control and spatial control on CH3I molecules can be realized and molecular coordinate frame can be obtained for further molecular experiment.

论文目录

文章来源

类型: 期刊论文

作者: 宋乐乐,王艳辉,王晓春,孙洪涛,赫兰海,罗嗣佐,胡文惠,李东旭,朱文会,孙亚楠,丁大军,刘福春

来源: Chinese Physics B 2019年02期

年度: 2019

分类: 基础科学,工程科技Ⅰ辑

专业: 化学

单位: Institute of Atomic and Molecular Physics, Jilin University,Jilin Institute of Chemical Technology,Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University,College of Electronic Science and Engineering, State Key Laboratory on Integrated Optoelectronics, Jilin University,General Hospital of FAW

基金: Project supported by the National Natural Science Foundation of China(Grant Nos.11574116,11534004,10704028,and 11474123),the Natural Science Foundation of Jilin Province,China(Grant No.20170101154JC)

分类号: O623.21

页码: 167-172

总页数: 6

文件大小: 405K

下载量: 16

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