中国物理B ›› 2018, Vol. 27 ›› Issue (3): 33301-033301.doi: 10.1088/1674-1056/27/3/033301

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Influence factor analysis of field-free molecular orientation

Jing-Song Liu(刘劲松), Qi-Yuan Cheng(程起元), Da-Guang Yue(岳大光), Xu-Cong Zhou(周旭聪), Qing-Tian Meng(孟庆田)   

  1. School of Physics and Electronics, Shandong Normal University, Ji'nan 250358, China
  • 收稿日期:2017-10-25 修回日期:2017-12-26 出版日期:2018-03-05 发布日期:2018-03-05
  • 通讯作者: Qing-Tian Meng E-mail:qtmeng@sdnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11674198), the Taishan Scholar Project of Shandong Province, China, and the Natural Science Foundation of Shandong Province, China (Grant No. ZR2014AM002).

Influence factor analysis of field-free molecular orientation

Jing-Song Liu(刘劲松), Qi-Yuan Cheng(程起元), Da-Guang Yue(岳大光), Xu-Cong Zhou(周旭聪), Qing-Tian Meng(孟庆田)   

  1. School of Physics and Electronics, Shandong Normal University, Ji'nan 250358, China
  • Received:2017-10-25 Revised:2017-12-26 Online:2018-03-05 Published:2018-03-05
  • Contact: Qing-Tian Meng E-mail:qtmeng@sdnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11674198), the Taishan Scholar Project of Shandong Province, China, and the Natural Science Foundation of Shandong Province, China (Grant No. ZR2014AM002).

摘要: The effects of the characteristics of molecules and external fields on field-free molecular orientation are investigated through the comparison of HBr with LiH driven by the combination of a two-color laser pulse and a time-delayed THz laser pulse. It is shown that the dipole interaction has greater influence on field-free orientation than the hyperpolarizability interaction. In addition to the temperature dependence of orientation degree, the effects of the amplitudes of the two-color laser pulse and THz laser pulse, rising time, and THz laser frequency on molecular orientation are also discussed.

关键词: molecular orientation, external fields, LiH, HBr

Abstract: The effects of the characteristics of molecules and external fields on field-free molecular orientation are investigated through the comparison of HBr with LiH driven by the combination of a two-color laser pulse and a time-delayed THz laser pulse. It is shown that the dipole interaction has greater influence on field-free orientation than the hyperpolarizability interaction. In addition to the temperature dependence of orientation degree, the effects of the amplitudes of the two-color laser pulse and THz laser pulse, rising time, and THz laser frequency on molecular orientation are also discussed.

Key words: molecular orientation, external fields, LiH, HBr

中图分类号:  (Photon interactions with molecules)

  • 33.80.-b
42.50.-p (Quantum optics) 33.20.Sn (Rotational analysis)