Abstract
It is shown with the use of the solution of the Boltzmann equation for laser pumping in a cell with antirelaxation coating that the velocity distribution of atomic polarization moments (PMs) is essentially dependent on the value of the magnetic field H. The z-velocity distribution of PMs in a low field, is a Maxwellian one with a small admixture of an almost monokinetic one. At larger field the same distribution remains for longitudinal alignment, but for transverse alignment the Maxwellian part of the distribution disappears (at It appears that the radial velocity distribution is also dependent on the field H. A calculation accounting for wall Maxwellization in low field gives for the pumping power needed to saturate the magneto-optic rotation a value similar to the experimentally determined value. It is shown that the known semiphenomenological theory neglecting the Maxwellization gives an acceptable description of magneto-optic rotation only for high (≈1 A/m) magnetic field.
© 2005 Optical Society of America
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