中国物理B ›› 2015, Vol. 24 ›› Issue (10): 104205-104205.doi: 10.1088/1674-1056/24/10/104205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Field-free orientation of diatomic molecule via the linearly polarized resonant pulses

李苏宇a b, 郭福明a b, 王俊a b, 杨玉军a b, 金明星a b   

  1. a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
    b Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, China
  • 收稿日期:2015-01-27 修回日期:2015-04-04 出版日期:2015-10-05 发布日期:2015-10-05
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11034003, 11474129, 11274141, and 11304116), the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20130061110021), and the Graduate Innovation Fund of Jilin University (Grant No. 2015091).

Field-free orientation of diatomic molecule via the linearly polarized resonant pulses

Li Su-Yu (李苏宇)a b, Guo Fu-Ming (郭福明)a b, Wang Jun (王俊)a b, Yang Yu-Jun (杨玉军)a b, Jin Ming-Xing (金明星)a b   

  1. a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
    b Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, China
  • Received:2015-01-27 Revised:2015-04-04 Online:2015-10-05 Published:2015-10-05
  • Contact: Jin Ming-Xing E-mail:mxjin@jlu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11034003, 11474129, 11274141, and 11304116), the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20130061110021), and the Graduate Innovation Fund of Jilin University (Grant No. 2015091).

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摘要： We propose a scheme to coherently control the field-free orientation of NO molecule whose rotational temperature is above 0 K. It is found that the maximum molecular orientation is affected by two factors: one is the sum of the population of M=0 rotational states and the other is their distribution, however, their distribution plays a much more significant role in molecular orientation than the sum of their population. By adopting a series of linearly polarized pulses resonant with the rotational states, the distribution of M= 0 rotational states is well rearranged. Though the number of pulses used is small, a relatively high orientation degree can be obtained. This scheme provides a promising approach to the achievement of a good orientation effect.

关键词: orientation, diatomic molecule, linearly polarized pulses, coherent control

Abstract: We propose a scheme to coherently control the field-free orientation of NO molecule whose rotational temperature is above 0 K. It is found that the maximum molecular orientation is affected by two factors: one is the sum of the population of M=0 rotational states and the other is their distribution, however, their distribution plays a much more significant role in molecular orientation than the sum of their population. By adopting a series of linearly polarized pulses resonant with the rotational states, the distribution of M= 0 rotational states is well rearranged. Though the number of pulses used is small, a relatively high orientation degree can be obtained. This scheme provides a promising approach to the achievement of a good orientation effect.

Key words: orientation, diatomic molecule, linearly polarized pulses, coherent control

中图分类号:  (Quantum optics)

  • 42.50.-p
33.80.-b (Photon interactions with molecules) 32.80.Qk (Coherent control of atomic interactions with photons)