A dual-species magneto-optical trap for lithium and strontium atoms

Abstract

We present a machine built for experiments with ultracold mixtures of strontium and lithium atoms. The machine includes a science vacuum chamber and the relevant laser systems for cooling and trapping the atoms. With this machine, we realize a D2-line compressed magneto-optical trap (MOT) for ${}^6$Li and a narrow-linewidth 689-nm MOT for ${}^{84}$Sr, obtaining ~$10^9$ ${}^6$Li atoms at 700 $\mu$K and ~$10^7$ ${}^{84}$Sr atoms at 1.8 $\mu$K. Such a dual-species MOT provides an ideal starting point for realizing double degenerate mixtures of ${}^6$Li and Sr atoms.