Role of transient processes in resonance line spectroscopy of caesium atoms in cells with antirelaxation coating. Quantum Electronics Volume 43, Issue 7, 2013, Pages 638-645

We study the peculiarities of the absorption spectra in D 1,2-lines of Cs, caused by optical pumping in cells with antirelaxation coating. In these cells the internal state of the atom, which arose under optical pumping by a monochromatic laser field, is preserved with a high probability in a collision with the wall. As a result, the optical pumping action extends to the entire volume of the cell and to all the velocities of the atoms. This leads to the speed-dependent scanning distortions of the absorption line profile. The detected features should be considered when using laserpumped quantum magnetometers with antirelaxation-coated cells.
Indexed keywords
Absorption line profiles; Anti-relaxation-coated cells; Doppler-free spectroscopy; High probability; Internal state; Monochromatic lasers; Relaxation; Transient process