Production and guidance of pulsed atomic beams on chip

We demonstrated two experimental methods of producing andguiding pulsed atomic beams on chip. One is to trap atoms first in aU-type magneto-optical trap on the chip, then transfer them to themagnetic guide field and push them simultaneously by a continuousforce from the power imbalance of the magneto-optical trap laserbeams hence the pulsed cold atom beams are produced and move alongthe magnetic guide to the destination. The other is to trap atomsdirectly by a H-type magneto-optical trap, then push them to makethem move along the magnetic guide field, thus high rate cold atombeams can be produced and guided on the chip.