Lifetime Measurement of the 6s Level of Rubidium

Details Lifetime Measurement of the 6s Level of Rubidium Lifetime Measurement of the 6s Level of Rubidium

2005-02-16

arxiv.org/abs/physics/0502090v1

Physics

Atomic Physics

10 pages, 9 figures

Scientific paper

10.1103/PhysRevA.72.012502

We present a lifetime measurements of the 6s level of rubidium. We use a time-correlated single-photon counting technique on two different samples of rubidium atoms. A vapor cell with variable rubidium density and a sample of atoms confined and cooled in a magneto-optical trap. The 5P_{1/2} level serves as the resonant intermediate step for the two step excitation to the 6s level. We detect the decay of the 6s level through the cascade fluorescence of the 5P_{3/2} level at 780 nm. The two samples have different systematic effects, but we obtain consistent results that averaged give a lifetime of 45.57 +- 0.17 ns.

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