Microwave spectrum asymmetry in an optically pumped cesium beamresonator |
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Authors: | Giordano V Boussert B Cerez P Theobald G Dimarcq N |
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Affiliation: | Lab. de l'Horloge Atomique, Univ. de Paris-Sud, Orsay; |
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Abstract: | This paper deals with a theoretical and experimental study that describes the effect of a frequency detuning of the laser used to achieve optical pumping in a small optically pumped cesium beam resonator. The ground state Zeeman sublevels with opposite angular momentum are unequally populated, leading to an asymmetrical microwave spectrum. The relative population asymmetry as a function of the laser frequency has a dispersion-like shape. Its dependence on laser intensity, applied magnetic field, and laser linewidth is demonstrated for a laser at 852 nm and tuned to the 2S1/2F=3→2P3/2F'=3 transition of the Cs D2 line. Finally, the effect of a slight laser detuning on the Rabi pulling frequency shift is discussed |
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