中国物理B ›› 2006, Vol. 15 ›› Issue (6): 1268-1272.doi: 10.1088/1009-1963/15/6/022

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Observation of four-wave mixing in caesium atoms using a noncycling transition

汪丽蓉, 马杰, 赵建明, 肖连团, 贾锁堂   

  1. State Key Laboratory of Quantum Optics and Quantum Optic Devices, College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006,China
  • 收稿日期:2005-11-11 修回日期:2006-01-16 出版日期:2006-06-20 发布日期:2006-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60378004) and the Youth Science Foundation \linebreak \hspace{7mm}of Shanxi Province,China (Grant Nos 20031004 and 20041013).

Observation of four-wave mixing in caesium atoms using a noncycling transition

Wang Li-Rong (汪丽蓉), Ma Jie (马杰), Zhao Jian-Ming (赵建明), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂)   

  1. State Key Laboratory of Quantum Optics and Quantum Optic Devices, College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006,China
  • Received:2005-11-11 Revised:2006-01-16 Online:2006-06-20 Published:2006-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60378004) and the Youth Science Foundation \linebreak \hspace{7mm}of Shanxi Province,China (Grant Nos 20031004 and 20041013).

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摘要： In this paper the generation of four-wave mixing (FWM) signal using a noncycling transition of caesium atoms is investigated when the pumping laser is locked to the transition $6{\rm S}_{1/2}F=4\to6{\rm P}_{3/2}F'=4$, and meanwhile the probe frequency is scanned across the $6{\rm S}_{1/2}F=4 \to6{\rm P}_{3/2}$ transition. The efficiency of the four-wave mixing signal as a function of the intensity of the pumping beams and the detuning of the pumping beams is also studied. In order to increase the detection efficiency, a repumping laser which is resonant with $6{\rm S}_{1/2} F=3\to 6{\rm P}_{3/2}F'=4$ transition is used. A theoretical model is also introduced, and the theoretical results are in qualitative agreement with experimental ones.

Abstract: In this paper the generation of four-wave mixing (FWM) signal using a noncycling transition of caesium atoms is investigated when the pumping laser is locked to the transition $6{\rm S}_{1/2}F=4\to6{\rm P}_{3/2}F'=4$, and meanwhile the probe frequency is scanned across the $6{\rm S}_{1/2}F=4 \to6{\rm P}_{3/2}$ transition. The efficiency of the four-wave mixing signal as a function of the intensity of the pumping beams and the detuning of the pumping beams is also studied. In order to increase the detection efficiency, a repumping laser which is resonant with $6{\rm S}_{1/2} F=3\to 6{\rm P}_{3/2}F'=4$ transition is used. A theoretical model is also introduced, and the theoretical results are in qualitative agreement with experimental ones.

Key words: four wave mixing, caesium atom, noncycling transition

中图分类号:  (Phase conjugation; photorefractive and Kerr effects)

  • 42.65.Hw
32.80.Xx (Level crossing and optical pumping) 42.55.Rz (Doped-insulator lasers and other solid state lasers) 42.55.Xi (Diode-pumped lasers)