Towards quantum gas microscopy of ²³Na-⁴⁰K Bose-Fermi mixtures and molecules

The rich and accessible Feshbach resonances between ²³Na and ⁴⁰K have enabled studies of ²³Na-⁴⁰K Bose-Fermi mixtures with tunable interaction ranging from weakly-bound dimers and trimers in a thermal gas to their evolution into Bose polarons when ⁴⁰K impurities are immersed in a ²³Na Bose-Einstein condensate. Their favorable collisional properties and recent advances in microwave-shielding techniques have also allowed for the creation of long-lived dipolar fermionic ground-state molecules of ²³Na⁴⁰K near quantum degeneracy, where novel quantum phases are expected to emerge. Building on previous works which are predominantly spectroscopy of bulk gases, we report on our recent progress towards a quantum gas microscope of ²³Na-⁴⁰K Bose-Fermi mixtures and molecules, which enables direct in-situ measurements of interparticle correlations in the continuum. We describe a new generation NaK experiment at MIT, focusing on the site-resolved imaging system and our implementation of dual-species imaging. Finally, we report preliminary findings and outline the future directions for our experiment.