Intense slow beams of bosonic potassium isotopes

Abstract

We report on an experimental realization of a two-dimensional magneto-optical trap (2D-MOT) that allows the generation of cold atomic beams of 39K and 41K bosonic potassium isotopes. The high measured fluxes up to 1.0x10^11 atoms/s and low atomic velocities around 33 m/s are well suited for a fast and reliable 3D-MOT loading, a basilar feature for new generation experiments on Bose-Einstein condensation of dilute atomic samples. We also present a simple multilevel theoretical model for the calculation of the light-induced force acting on an atom moving in a MOT. The model gives a good agreement between predicted and measured flux and velocity values for our 2D-MOT.

arXiv commentUpdated references, 1 figure added, 10 pages, 9 figures

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Cited by in corpus (21)

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• Degenerate Bose-Bose mixture in a three-dimensional optical lattice
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• $\Lambda$-enhanced grey molasses on the $D_2$ transition of Rubidium-87 atoms
• A compact high-flux source of cold sodium atoms
• Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atoms
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• Direct evaporative cooling of 41K into a Bose-Einstein condensate
• Transition properties of potassium atom
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• A compact experimental machine for studying tunable Bose-Bose superfluid mixtures
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• A high-flux source system for matter-wave interferometry exploiting tunable interactions
• Jet-Loaded Cold Atomic Beam Source for Strontium
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• Lithium-cesium slow beam from a two-dimensional magneto-optical trap
• Ab initio Calculations of Electric Dipole Polarizabilities in the Li, Na and K Atoms
• Compact Continuous Cold Atomic Beam from a Single Cell with 3D Cooling and Ultra-low Light Shift