Zeeman effect of superfluorescently populated 6snf 1F3 Ba I levels

Abstract

Zeeman quantum beats of the Ba I 6snf F levels were measured between n"10 and 19 by time resolved recording of the exponential decay of the fluorescence on the 6snf F !6s5d D transitions. The 6snf F levels were populated by superfluorescence pulses from the energetically higher lying 6s(n#3)d D levels, the D levels were excited in a resonant two step process by two pulsed dye lasers. The experimental results of the g ( values in the 6snf F sequence are in fair agreement with the prediction of multi-channel quantum-defect theory.