Spatial Profiles of a Deflected Cesium Atomic Beam

Christian Tanguy, Serge Reynaud, M. Matsuoka +1 more

Richard N. Watts, Carl Wieman

Jiang Chen, Zhu Hong-wei, Yinguang Ma +3 more

We present Monte Carlo simulations of the deflection of a beam of 133Cs atoms in a two wire magnetic field. Our results reveal the relationship between transmission rate of the atoms and incident parameters. Incident angle and position of the beam with maximum transmission are obtained from the simulations. The effect of the deflection field on the spatial distribution (beam profile) of 133Cs is derived. The method will help with the design of magnetic deflection experiments and to extract the magnetic properties from such experiments.

Yuji Fukaya, Shunichi Sato

A simple control method for the velocity distribution of cesium atoms is demonstrated using a frequency modulated diode laser with a wider spectrum. Current to the diode laser was modulated and the laser spectrum was broadened to overlap the Doppler broadening of the atomic beam. The reduction of the atom velocity was achieved on the basis of the laser cooling technique and a single narrow peak at approximately 45 m/s was observed. From a view point of a novel purification process, the possibility to deflect this cooled cesium atomic beam was discussed to spatially separate the beam from impurities.

Richard N. Watts, Carl Wieman

Pierre Meystre, Ernst Schumacher, Stig Stenholm