Cascade coherence transfer and magneto-optical resonances at 455 nm excitation of Cesium

Details Cascade coherence transfer and magneto-optical resonances at 455 nm excitation of Cesium Cascade coherence transfer and magneto-optical resonances at 455 nm excitation of Cesium

2010-10-11

arxiv.org/abs/1010.2123v2

Physics

Atomic Physics

small changes to text of previous version; 12 pages, 8 figures

Scientific paper

We present and experimental and theoretical study of nonlinear magneto-optical resonances observed in the fluorescence to the ground state from the 7P_{3/2} state of cesium, which was populated directly by laser radiation at 455 nm, and from the 6P_{1/2} and 6P_{3/2} states, which were populated via cascade transitions that started from the 7P_{3/2} state and passed through various intermediate states. The laser-induced fluorescence (LIF) was observed as the magnetic field was scanned through zero. Signals were recorded for the two orthogonal, linearly polarized components of the LIF. We compared the measured signals with the results of calculations from a model that was based on the optical Bloch equations and averaged over the Doppler profile. This model was adapted from a model that had been developed for D_1 and D_2 excitation of alkali metal atoms. The calculations agree quite well with the measurements, especially when taking into account the fact that some experimental parameters were only estimated in the model.

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