# Analyzing a single-laser repumping scheme for efficient loading of a strontium magneto-optical trap

@article{Hu2018AnalyzingAS,
title={Analyzing a single-laser repumping scheme for efficient loading of a strontium magneto-optical trap},
author={Fachao Hu and I. Nosske and Luc Couturier and Canzhu Tan and Chang Qiao and Peng Chen and Y. H. Jiang and Bing Zhu and M. Weidemuller},
journal={Physical Review A},
year={2018}
}
• Published 4 December 2018
• Physics, Materials Science
• Physical Review A
We demonstrate enhanced loading of strontium atoms into a magneto-optical trap using a repumping scheme from the metastable state via the doubly-excited state $5\mathrm{s}5\mathrm{p}\,^3\mathrm{P}_2 \rightarrow 5\mathrm{p}^2\,^3\mathrm{P}_2$ at $481~\mathrm{nm}$. The number of trapped atoms is increased by an order of magnitude. The frequency and intensity dependence of the atom number enhancement, with respect to the non-repumping case, is well reproduced by a simple rate equation model, which…
7 Citations

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## References

SHOWING 1-10 OF 35 REFERENCES

• Materials Science
• 2005
We present the simultaneous cooling and trapping of an isotopic mixture in a magneto-optical trap and describe the transfer of the mixture into a conservative, far-off-resonant dipole trap. The
• Physics
• 2017
We report on the realization of a transversely loaded two-dimensional magneto-optical trap serving as a source for cold strontium atoms. We analyze the dependence of the source's properties on
• Physics
Physical Review X
• 2018
We demonstrate single-shot imaging and narrow-line cooling of individual alkaline earth atoms in optical tweezers; specifically, strontium-88 atoms trapped in $515.2~\text{nm}$ light. We achieve
• Physics
Journal of Physics Communications
• 2018
The theoretical description of the external degrees of freedom of atoms trapped inside a magneto-optical trap (MOT) often relies on the decoupling of the evolution of the internal and external
• Physics
• 2017
We investigate the limiting factors in the standard implementation of the Ca magneto-optical trap. We find that intercombination transitions from the 4s5p 1P1 state used to repump electronic
• Physics
• 2003
We present a detailed investigation of strontium magneto-optical trap (MOT) dynamics. Relevant physical quantities in the trap, such as temperature, atom number and density, and loss channels and
• Physics
Laser Physics
• 2019
We present the first extended-cavity diode laser in Littrow configuration operating in the cyan wavelength range around 497 nm. The gallium-nitride based diode laser features a free-space output with
• Physics
• 2009
We describe repumping and spectroscopy of laser-cooled strontium (Sr) atoms using the (5s5p)3P2–(5s4d)3D2 transition. Atom number in a magneto-optical trap is enhanced by driving this transition
• Physics
The Review of scientific instruments
• 2018
The wavemeter-based frequency stabilization scheme can be applied to a wide range of atoms and molecules for laser spectroscopy, cooling, and trapping, and provides excellent stability in single-channel operation.
• Physics
Science
• 2017
A scalable solution is demonstrated that takes advantage of the high, correlated density of a degenerate Fermi gas in a three-dimensional (3D) optical lattice to guard against on-site interaction shifts.