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Cooling and trapping of ultra-cold strontium isotopic mixtures

N. Poli·R. E. Drullinger·G. Ferrari·J. Leonard·F. Sorrentino·G. M. Tino
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Abstract

We present the simultaneous cooling and trapping of an isotopic mixture in a magneto-optical trap and we describe the transfer of the mixture into a conservative, far-off resonant dipole trap. The mixture is prepared with a new technique that applies to intermediate and heavy alkaline earth like atoms. In this work, 88Sr and 86Sr are simultaneously loaded first into the magneto-optical trap operated on the 1S0-3P1 spin-forbidden line at 689 nm, and then transferred into the dipole trap. We observe fast inter-species thermalization in the dipole trap which allows one to set a lower bound on the 88Sr-86Sr elastic cross section.

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N. Poli, R. E. Drullinger, G. Ferrari, J. Leonard, F. Sorrentino, G. M. Tino. 2006-08-24. Cooling and trapping of ultra-cold strontium isotopic mixtures. https://doi.org/10.1103/physreva.71.061403

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