1 Department of Physics and Astronomy, Faculty of Science, Aarhus University, Aarhus University2 Leibniz Universität Hannover3 Department of Physics and Astronomy, Science and Technology, Aarhus University4 Department of Physics and Astronomy, Science and Technology, Aarhus University
Magneto-optical traps on atom chips are usually restricted to small atomic samples due to a limited capture volume caused primarily by distorted field configurations. Here we present a magneto-optical trap based on a millimeter-sized wire structure which generates a magnetic field with minimized distortions. Together with the loading from a high-flux two-dimensional magneto-optical trap, we achieve a loading rate of 8.4×1010 atoms/s and maximum number of 8.7×109 captured atoms. The wire structure is placed outside of the vacuum to enable a further adaptation to new scientific objectives. Since all magnetic fields are applied locally without the need for external bias fields, the presented setup will facilitate parallel generation of Bose-Einstein condensates on a conveyor belt with a cycle rate above 1 Hz.
Physical Review a (atomic, Molecular and Optical Physics), 2011, Vol 83, Issue 4