Isotope Separation of Potassium with a magneto-optical combined method

Abstract

Due to the similar physical and chemical properties, isotopes are usually hard to separate. On the other hand, the isotope shifts are very well separated in a high-resolution spectrum, making them possible to be addressed individually by lasers, thus separated. Here we report such an isotope separation experiment with Potassium atoms. The isotopes are independently optical pumped to the desired spin states, and then separated with a Stern-Gerlach scheme. A micro-capillary oven is used to collimate the atomic beam, and a Halbach-type magnet array is used to deflect the desired atoms. Finally, the ${}^{40}$K is enriched by two orders of magnitude. This magneto-optical combined method provides an effective way to separate isotopes and can be extended to other elements if the relevant optical pumping scheme is feasible.

References in corpus (5)

• Single-atom imaging of fermions in a quantum-gas microscope
• A Quantum Gas Microscope for Fermionic Atoms
• Spin Transport in a Mott Insulator of Ultracold Fermions
• Effusive Atomic Oven Nozzle Design Using an Aligned Microcapillary Array
• Highly efficient isotope separation and ion implantation of ${}^{163}$Ho for the ECHo project