Steady-state multipole moments of atoms in a resonant field with elliptical polarization

Abstract

Steady-state multipole moments of atoms ρ K q of the rank K ⩽ 2 are analytically calculated for all closed dipole transitions J g → J e in a resonant radiation field with arbitrary intensity and arbitrary elliptical polarization. The nonlinear propagation of a monochromatic elliptically polarized wave through a medium consisting of atoms with resonant transition J g → J e is considered as an application.