Polarization phenomena upon excitation by the Λ-scheme and at an anisotropic population of lower levels
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We have investigated the possibility of the formation of dark states and of the change in the sign of the alignment of an ensemble of atoms with the filled ns-shell the state (n + 1)3 S 1 of which is excited by the Λ-scheme from states n 3 P 1 and n 3 P 2, which, in turn, are populated by means of an axially symmetric interaction.
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