5 January 2017 Nonlinear resonances sign reversal and longitudinal alignment on the resonant levels of 133Cs thin-layer vapour
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Proceedings Volume 10226, 19th International Conference and School on Quantum Electronics: Laser Physics and Applications; 102260M (2017) https://doi.org/10.1117/12.2263622
Event: International Conference and School on Quantum Electronics "Laser Physics and Applications" - ICSQE 2016, 2016, Sozopol, Bulgaria
Abstract
The fluorescence and non-linear absorption spectra of Cs133 vapour in an extremely thin cell were calculated by using the perturbation theory with respect to the pumping field intensity. The problem of the atoms’ non-linear polarization was solved for arbitrary values of the total momenta of the resonance levels pumped by a linearly-polarised laser field. It was demonstrated that the spontaneous emission from the upper level affects the amplitude and sign of the lower level longitudinal alignment and results in a change of the amplitude and sign of the non-linear absorption resonance at the closed transition. The comparison of the numerical calculations with the experimental data for the D2 line of 133Cs shows a very good agreement.
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G. Todorov, V. Polischuk, A. Krasteva, S. Cartaleva, A. Sargsyan, T. Vartanyan, "Nonlinear resonances sign reversal and longitudinal alignment on the resonant levels of 133Cs thin-layer vapour", Proc. SPIE 10226, 19th International Conference and School on Quantum Electronics: Laser Physics and Applications, 102260M (5 January 2017); doi: 10.1117/12.2263622; https://doi.org/10.1117/12.2263622
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