A laser-cooled neutral-atom beam from a low-velocity intense source is split into two beams while it is guided by a magnetic-field potential. We generate our multimode beam-splitter potential with two current-carrying wires upon a glass substrate combined with an external transverse bias field. The atoms are guided around curves and a beam-splitter region within a 10-cm guide length. We achieve a maximum integrated flux of 1.5×105atoms/s with a current density of 5×104amp/cm 2 in the 100-µm -diameter wires. The initial beam can be split into two beams with a 50/50 splitting ratio.
© 2000 Optical Society of America
(020.7490) Atomic and molecular physics : Zeeman effect
Dirk Müller, Eric A. Cornell, Marco Prevedelli, Peter D. D. Schwindt, Alex Zozulya, and Dana Z. Anderson, "Waveguide atom beam splitter for laser-cooled neutral atoms," Opt. Lett. 25, 1382-1384 (2000)