The lifetime of the Xe II 5p 4 6p 4 P 5/2 0 level is measured by selective laser excitation of a fast beam of metastable 5p 4 5d 4 D 7/2 xenon ions and observations of the fluorescent light intensity as a function of flight time. Comparison of the obtained mean lifetime tau =7.53+or-0.15 ns with earlier measurements confirms the results of the photon-photon delayed-coincidence technique.

Journal of Physics B Atomic and Molecular PhysicsJan 28, 198110 citations

Radiative lifetime of metastable 2S13 Li+

Randall D. Knight, Michael H. Prior

Physical Review AJan 1, 198050 citations

Optics Communications

Laser-induced fluorescence of metastable xenon ions

M. Elbel, Christoph K. Hohle, Harry Hühnermann, Th. Meier, B. Vettin

Published Dec 1, 1976• 2 citations

Publisher

DOI: 10.1016/0030-4018(76)90110-3

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Radiative lifetime of metastable 2S13 Li+

Randall D. Knight, Michael H. Prior

The radiative lifetime of $1s2s^{3}S_{1}$ ${\mathrm{Li}}^{+}$ ions has been measured by a comparison of the count rate of spontaneous decay photons (210 \AA{}) to a laser-induced fluorescence signal proportional to the total number of metastable ions. The ions were confined in a rf-quadrupole trap, and the fluorescence signal used was the intercombination transition $1s2p^{3}P_{1}$ to $1{s}^{2}^{1}S_{0}$ at 202 \AA{}. The $^{3}P_{1}$ state was populated from $^{3}S_{1}$ by absorption of laser photons at 5485 \AA{}. The result is ${\ensuremath{\tau}}_{r}=58.6\ifmmode\pm\else\textpm\fi{}12.9$ sec (95% confidence level); theory predicts ${\ensuremath{\tau}}_{r}=49.1$ sec.The radiative lifetime of $1s2s^{3}S_{1}$ ${\mathrm{Li}}^{+}$ ions has been measured by a comparison of the count rate of spontaneous decay photons (210 \AA{}) to a laser-induced fluorescence signal proportional to the total number of metastable ions. The ions were confined in a rf-quadrupole trap, and the fluorescence signal used was the intercombination transition $1s2p^{3}P_{1}$ to $1{s}^{2}^{1}S_{0}$ at 202 \AA{}. The $^{3}P_{1}$ state was populated from $^{3}S_{1}$ by absorption of laser photons at 5485 \AA{}. The result is ${\ensuremath{\tau}}_{r}=58.6\ifmmode\pm\else\textpm\fi{}12.9$ sec (95% confidence level); theory predicts ${\ensuremath{\tau}}_{r}=49.1$ sec.

Physical Review AJan 1, 198050 citations

The radiative lifetime of

1s2s^{3}S_{1}

{\mathrm{Li}}^{+}

ions has been measured by a comparison of the count rate of spontaneous decay photons (210 \AA{}) to a laser-induced fluorescence signal proportional to the total number of metastable ions. The ions were confined in a rf-quadrupole trap, and the fluorescence signal used was the intercombination transition

1s2p^{3}P_{1}

to $1{s}^{2}^{1}S_{0}$ at 202 \AA{}. The

^{3}P_{1}

state was populated from

^{3}S_{1}

by absorption of laser photons at 5485 \AA{}. The result is ${\ensuremath{\tau}}_{r}=58.6\ifmmode\pm\else\textpm\fi{}12.9$ sec (95% confidence level); theory predicts ${\ensuremath{\tau}}_{r}=49.1$ sec.