球面波场下原子的力学效应及球面波磁光阱

摘要

从理论上计算了原子在球面波场中的受力情况，提出具体球面波磁光阱(MOT)的方案，计算结果表明，球面波冷却和捕陷原子的方法具有冷却原子的范围大和捕陷原子的数目多，冷却效率高等优点。并可极大地缩小装置的体积。%A general theory of the motion of a two-level atom in electromagnetic wave was adopt to calculate the radiation pressure on atoms in spherical laser wave. We find that the radiation pressure force was relate to the motion direction of atoms, and various velocity corresponding to various range of radiation pressure on atoms. So some range of atoms will be cool down and traped in MOT. By choose the red tuning amount of laser frequency, the range of be cooling atoms and intensity of pressure force can be changed.