Abstract

An intense cold-atom beam source based on a modified pyramidal magneto-optical trap has been developed and characterized. We have produced a slow beam of cold cesium atoms with a continuous flux of $2.2\times \hspace{0.5em}{10}^9 \mathrm{atoms}/\mathrm{s}$ at a mean velocity of 15 m/s and with a divergence of 15 mrad. The corresponding radiant intensity is $1.2\times {10}^{13} \mathrm{atom} {\mathrm{s}}^{-1} {\mathrm{sr}}^{-1}.$ We have characterized the performance of our beam source over a range of operating conditions, and the measured values for atom flux, mean velocity, and divergence are in good agreement with results from detailed Monte Carlo numerical simulations.

© 2003 Optical Society of America

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