大失谐连续输运激光情形下双磁光阱中冷原子的输运

We have established cesium double magneto-optical trap (double MOT) system, and realized transferring cold atoms from the vapor-cell MOT to the ultra-high-vacuum (UHV) MOT by continuous transfer laser. On the base of our former work about transferring atoms by weak resonance laser, we extended red detuning of transfer beam to 2.5GHz, and increased the laser power. We have studied about the transport of cold atoms. It is demonstrated that if the detuning is far off resonance the stronger laser power would make the transport much more efficient. It is induced by the confinement and guide of cold atoms due to the transverse dipole force of the transfer beam.