Abstract

We use two-photon resonant excitation and time-correlated single-photon counting techniques on a sample of  210Fr atoms confined and cooled in a magneto-optical trap to measure the lifetime of the 9s excited level. Direct measurement of the decay through the 7P3/2 level at 851 nm yields a lifetime of 107.53±0.80 ns.

© 2003 Optical Society of America

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