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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 1 — Jan. 1, 2005
  • pp: 29–36

Velocity distribution of laser-induced atomic polarization moments in antirelaxation-coated cell and magneto-optic rotation

A. I. Okunevich  »View Author Affiliations


JOSA B, Vol. 22, Issue 1, pp. 29-36 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000029


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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, H10-4 A/m, 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 H1 A/m). 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

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.2070) Atomic and molecular physics : Effects of collisions

Citation
A. I. Okunevich, "Velocity distribution of laser-induced atomic polarization moments in antirelaxation-coated cell and magneto-optic rotation," J. Opt. Soc. Am. B 22, 29-36 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-1-29

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