J4 ›› 2011, Vol. 28 ›› Issue (3): 262-270.

• 光谱 • 上一篇    下一篇

基于四波混频的元素超精细光谱研究

郑涛   

  1. 1 西北大学光子学与光子技术研究所,陕西 西安710069; 
    2 陕西青年职业学院,陕西 西安 710068
  • 收稿日期:2009-08-27 修回日期:2010-10-12 出版日期:2011-05-28 发布日期:2011-05-20
  • 通讯作者: 郑涛(1979-),研究生,现主要从事非线性光学的研究。 E-mail:zoto_1111@126.com
  • 基金资助:

    国家自然基金资助(10874139)

Elements hyperfine spectrum based on four-wave mixing

Zheng Tao   

  1. 1 Institute of Photonics and Photon Technology, Northwest University, Xi’an 710069, China;
    2 Shaanxi Youth Vocational College,Xi’an 710068, China
  • Received:2009-08-27 Revised:2010-10-12 Published:2011-05-28 Online:2011-05-20

摘要:

提出将简并四波混频激光光谱分析技术用于物质超精细结构检测,加之量子光学理论计算的新方法测量同位素含量。即由实验现象确定出自激振荡频率后,在三阶极化率的基础上,通过量子光学梯形三能级系统的计算,得到了简并四波混频双光子共振吸收下,三阶极化率与原子数密度的关系。

关键词: 非线性光学, 同位素检测, 简并四波混频, 超精细光谱

Abstract:

The new method for isotope analyzing based on degenerate four wave mixing (DFWM) is proposed for super-spin structure researches and the quantum optics theoretical calculation is also introduced to get the percentage of isotopes. The self-oscillation frequency can be determined from the experimental phenomenon. Then, based on three order nonlinear polarizability, with quantum optics calculation of three ladder level system, the relationship of three order nonlinear polarizability and atomicity density can be measured.

Key words: nonlinear optics, isotopic measurement, degenerate four-wave mixing, hyperfine spectrum

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