Hidden structure of the quasistatic wing of the atomic line of rubidium
Vartanyan T.A. , Maksimov Yu.N. , Przhibel'skii S.G. , Khromov V.V.
Laser saturation spectroscopy methods are used to study the quasistatic wing of the atomic line of Rb formed by collisions between Rb and Xe atoms. The nonlinear excitation spectrum of atomic fluorescense shows a hidden structure whose nature is explained within the framework of the semiclassical theory in terms of the inhomogeneity of the ensemble of colliding atoms.