Effects of Zeeman degeneracy on the steady-state properties of an atom interacting with a near-resonant laser field: Analytic results

Bo Gao
Phys. Rev. A 48, 2443 – Published 1 September 1993
PDFExport Citation

Abstract

The analytic solution of the steady-state density matrix is presented for a closed two-level atom with an arbitrary ground-state angular momentum Jg and an excited-state angular momentum Je interacting with a linearly polarized laser field. From this solution, analytic formulas for the total rate of laser-atom scattering, the rate of coherent scattering, and radiative forces are derived. Interestingly, it is found that population inversion in true atomic states, as opposed to the population inversion in the dressed states, can occur under certain conditions. A method is proposed to take advantage of this inversion for light amplification. The mathematical formulation is built around the concept of the resolvent operator in Liouville space, with some conclusions that are generally applicable to any system with a unique steady state.

  • Received 20 January 1993

DOI:https://doi.org/10.1103/PhysRevA.48.2443

©1993 American Physical Society

Authors & Affiliations

Bo Gao

  • Joint Institute for Laboratory Astrophysics, University of Colorado National Institute of Standards and Technology, Boulder, Colorado 80309-0440

References (Subscription Required)

Click to Expand
Issue

Vol. 48, Iss. 3 — September 1993

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×