Determination of natural radiative lifetimes and Lande factors for highly excited F states in cesium

Natural radiative lifetimes and LandégJ factors for several highly excitedF states in cesium were measured using time-resolved fluorescence spectroscopy. TheF states were excited from the 52D5/2 state with a pulse-modulated CW dye laser, and the delayed-coincidence method was employed to record decay curves, which in some experiments exhibited Zeeman quantum beats. A further CW dye laser was used to produce the necessary population in the 52D5/2 state. The lifetimes in the sequence 11–162F7/2 follow anx scaling law withx=2.76 and the Landé factors agree with the predicted value, 1.143.