Precision lifetime measurements of a single trapped ion with ultrafast laser pulses

Details Precision lifetime measurements of a single trapped ion with ultrafast laser pulses Precision lifetime measurements of a single trapped ion with ultrafast laser pulses

2005-05-15

arxiv.org/abs/quant-ph/0505111v1

Phys. Rev. A 73, 023413 (2006)

Physics

Quantum Physics

4 pages with 3 figures

Scientific paper

10.1103/PhysRevA.73.023413

We report precision measurements of the excited state lifetime of the $5p$ $^2P_{1/2}$ and $5p$ $^2P_{3/2}$ levels of a single trapped Cd$^+$ ion. The ion is excited with picosecond laser pulses from a mode-locked laser and the distribution of arrival times of spontaneously emitted photons is recorded. The resulting lifetimes are 3.148 $\pm$ 0.011 ns and 2.647 $\pm$ 0.010 ns for $^2P_{1/2}$ and $^2P_{3/2}$ respectively. With a total uncertainty of under 0.4%, these are among the most precise measurements of any atomic state lifetimes to date.

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