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arXiv · 1606.08206

Optical pumping effect in absorption imaging of F=1 atomic gases

Sooshin Kim·Sang Won Seo·Heung-Ryoul Noh·Y. Shin
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Abstract

We report our study of the optical pumping effect in absorption imaging of $^{23}$Na atoms in the $F=1$ hyperfine spin states. Solving a set of rate equations for the spin populations in the presence of a probe beam, we obtain an analytic expression for the optical signal of the $F=1$ absorption imaging. Furthermore, we verify the result by measuring the absorption spectra of $^{23}$Na Bose-Einstein condensates prepared in various spin states with different probe beam pulse durations. The analytic result can be used in the quantitative analysis of $F=1$ spinor condensate imaging and readily applied to other alkali atoms with $I=3/2$ nuclear spin such as $^{87}$Rb.

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Sooshin Kim, Sang Won Seo, Heung-Ryoul Noh, Y. Shin. 2016-06-27. Optical pumping effect in absorption imaging of F=1 atomic gases. https://doi.org/10.1103/physreva.94.023625

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