J4 ›› 2012, Vol. 29 ›› Issue (1): 1-7.

• 光谱 •    下一篇

钠原子D2线FADOF强磁场模型适用条件研究

陈曦1,3,程学武1,2,杨勇1,3,龚顺生1,2,王谨1,詹明生1   

  1. 1中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室-武汉光电国家实验室,武汉 430071; 
    2中国科学院空间天气学国家重点实验室,北京 100190; 
    3中国科学院研究生院,北京 100049
  • 收稿日期:2011-01-10 修回日期:2011-03-23 出版日期:2012-01-28 发布日期:2012-01-28
  • 通讯作者: 王谨(1970 -),甘肃人,研究员,博士,主要从事冷原子物理实验研究工作。 E-mail:wangjin@wipm.ac.cn
  • 作者简介:陈曦(1981-),湖北人,博士生,主要从事冷原子与激光光谱方面的研究。Email:chenxi@wipm.ac.cn
  • 基金资助:

    国家自然科学基金(10978003,40905012)资助

Applying condition of  strong field model for sodium D2 transition FADOF

CHEN Xi1,3, CHENG Xuewu1,2, YANG Yong 1,3, GONG Shunsheng 1,2, WANG Jin 1, ZHAN Mingsheng1   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics,, Wuhan 430071; 
    2 State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190; 
    3 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 
  • Received:2011-01-10 Revised:2011-03-23 Published:2012-01-28 Online:2012-01-28

摘要:

相比于FADOF的精确模型,强磁场模型的能级结构简单,因此可以给出一些解析表达式,但是只有当磁场较强时才近似成立。通过计算两种模型在相同参数下的钠原子D2线透射谱,并将计算得到的谱型和实验数据进行比对,得出了强磁场模型的适用条件以及符合程度。当磁场小于0.1 T时,两种模型中心透射谱的差别大于50%,而当磁场大于0.3 T时,透射谱的差别小于5%。

关键词: 光谱学, 强磁场模型适用条件, 模型比对方法, 法拉第反常色散滤光器, 激光雷达

Abstract:

Comparing to the accurate model of FADOF, the energy level of the strong field model is simple, so it can be used to give some analytical expressions. But it is only valid when the magnetic field is strong. By solving the transmission spectrum of the FADOF for the sodium D2 transition by these two models. And testing these results by the experimental data, applying condition for the strong-field model is successfully found. When the magnetic field is less than 0.1 T, the transmission spectrum difference of these two models is greater than 50%, and when the magnetic field is greater than 0.3 T, the difference is less than 5%.

Key words: spectroscopy, applying condition of the strong-field model, model comparison method, Faraday anomalous dispersion optical filter, lidar

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