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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Theory of optical pumping of atoms by an elliptically polarized field

А. В. Тайченачев, Anatolii M Tumaikin, Valeriy I. Yudin

Published Oct 21, 1998• 1 citation
Publisher

Abstract

In the present paper we fully analytically solve the problem on optical pumping of atoms by a monochromatic elliptically polarized radiation with taking into account the radiative relaxation of the excited state. It is shown that all dipole- allowed transitions can be divided into four classes with respect to the steady-state solution structure and its physical manifestations. Possible applications of the obtained solution are discussed.

DOI
10.1117/12.328235

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In the present paper we fully analytically solve the problem on optical pumping of atoms by a monochromatic elliptically polarized radiation with taking into account the radiative relaxation of the excited state. It is shown that all dipole- allowed transitions can be divided into four classes with respect to the steady-state solution structure and its physical manifestations. Possible applications of the obtained solution are discussed.
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We present a complete set of analytical and invariant expressions for the steady-state density matrix of atoms in a resonant radiation field with arbitrary intensity and polarization. The field drives the closed dipole transition with arbitrary values of the angular momenta Jg{J}_{g}Jg​ and Je{J}_{e}Je​ of the ground and excited state. The steady-state density matrix is expressed in terms of spherical harmonics of a complex direction given by the field polarization vector. The generalization to the case of broadband radiation is given. We indicate various applications of these results.