Iterative Precision Measurement of Branching Ratios Applied to 5P states in 88Sr+

Abstract

We report on a method for measuring the branching ratios of dipole transitions of trapped atomic ions by performing nested sequences of population inversions. This scheme is broadly applicable and does not use ultrafast pulsed or narrow linewidth lasers. It is simple to perform and insensitive to experimental variables such as laser and magnetic field noise as well as ion heating. To demonstrate its effectiveness, we make the most accurate measurements thus far of the branching ratios of both 5P1/2 and 5P3/2 states in 88Sr+ with sub-1% uncertainties. We measure 17.175(27) for the branching ratio of 5P1/2-5S1/2, 15.845(71) for 5P3/2-5S1/2, and 0.05609(21) for 5P3/2-4D5/2, ten- fold and thirty-fold improvements in precision for 5P1/2 and 5P3/2 branching ratios respectively over the best previous experimental values.

References in corpus (8)

• Single-Ion Atomic Clock with $3\times 10^{-18}$ Systematic Uncertainty
• Exploring the Origin of Lithium, Carbon, Strontium and Barium with four new Ultra Metal-Poor Stars
• Precision measurement of the branching fractions of the 4P3/2 decay of Ca II
• GIANO Y-band spectroscopy of dwarf stars: Phosphorus, Sulphur, and Strontium abundances
• Precision measurement of the branching ratio in the 6P3/2 decay of BaII with a single trapped ion
• Precision measurement of the branching fractions of the 5p 2 P 1/2 state in 88 Sr + with a single ion in a micro fabricated surface trap
• Measurement of the branching fractions and lifetime of the $5D_{5/2}$ level of Ba${}^{+}$
• Precision measurement of branching fractions of ${}^{138}$Ba${}^{+}$: Testing many body theories below one percent level

Cited by in corpus (10)

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• Measurements of the branching ratios for $6P_{1/2}$ decays in ${}^{138}$Ba${}^{+}$
• Radiative Transition Properties of Singly Charged Magnesium, Calcium, Strontium and Barium Ions
• Highly-polarizable ion in a Paul trap
• Electric dipole transition amplitudes for atoms and ions with one valence electron
• Measurement of the $7p{}^2{P}_{3/2}$ state branching fractions in ${\mathrm{Ra}}^{+}$
• Theoretical characterisation of the barium II and radium II ions