TY - DATA T1 - Scheme of the hyperfine levels and allowed transitions of the D2 line of 87Rb PY - 2013/09/05 AU - Marcis Auzinsh AU - Andris Berzins AU - Ruvin Ferber AU - Florian Gahbauer AU - Linards Kalvans AU - Arturs Mozers UR - https://iop.figshare.com/articles/figure/_Scheme_of_the_hyperfine_levels_and_allowed_transitions_of_the_em_D_em_sub_2_sub_line_of_sup_87_sup_/1012709 DO - 10.6084/m9.figshare.1012709.v1 L4 - https://ndownloader.figshare.com/files/1480532 KW - 100 mG KW - signal KW - D 2 line KW - velocity groups KW - fluorescence KW - model KW - Coherent effects KW - laser field KW - 87 Rb KW - field values KW - polarization components KW - Atomic Physics KW - Molecular Physics N2 - Figure 1. Scheme of the hyperfine levels and allowed transitions of the D2 line of 87Rb. Abstract We present the results of an investigation of the different physical processes that influence the shape of nonlinear magneto-optical signals both at small magnetic field values (~100 mG) and at large magnetic field values (several tens of Gauss). We used a theoretical model that provided an accurate description of experimental signals for a wide range of experimental parameters. By turning various effects 'on' or 'off' inside this model, we investigated the origin of different features of the measured signals. We confirmed that the narrowest structures, with widths of the order of 100 mG, are related mostly to coherences among ground-state magnetic sublevels. The shape of the curves at other scales could be explained by taking into account the different velocity groups of atoms that come into and out of resonance with the exciting laser field. Coherent effects in the excited state can also play a role, although they mostly affect the polarization components of the fluorescence. The results of theoretical calculations are compared with experimental measurements of laser-induced fluorescence from the D2 line of atomic rubidium as a function of the magnetic field. ER -