一个采用任意占空比的偏振调制光的贝尔-布鲁姆实验。
A Bell-Bloom experiment with polarization-modulated light of arbitrary duty cycle.
作者信息
Fescenko I, Knowles P, Weis A, Breschi E
机构信息
Physics Department, University of Fribourg, Chemin du Musée 3, 1700 Fribourg, Switzerland.
出版信息
Opt Express. 2013 Jul 1;21(13):15121-30. doi: 10.1364/OE.21.015121.
We report on a study of polarization-modulation experiments on the 4 → 3 hyperfine component of the D1 transition in Cs vapor contained in a paraffin-coated cell. The laser beam's polarization was switched between left- and right-circular polarization at a rate of 200 Hz. Variations of the transmitted light power were recorded while varying the amplitude of a transverse magnetic field. The power shows electromagnetically induced transparency (EIT) resonances when the atomic Larmor frequency matches a harmonic of the modulation frequency. We made a quantitative study of the resonance amplitudes with square-wave modulations of various duty cycles, and find an excellent agreement with recent algebraic model predictions.
我们报告了一项关于在石蜡涂层细胞中包含的铯蒸汽中D1跃迁的4→3超精细成分的偏振调制实验的研究。激光束的偏振以200Hz的速率在左旋和右旋圆偏振之间切换。在改变横向磁场幅度的同时记录透射光功率的变化。当原子拉莫尔频率与调制频率的谐波匹配时，功率显示出电磁诱导透明（EIT）共振。我们对各种占空比的方波调制的共振幅度进行了定量研究，并发现与最近的代数模型预测非常吻合。
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