积分球内的铷原子激光冷却

研究了积分球内激光冷却原理，设计积分球时对积分球的反射率、尺寸及球上开孔大小对于激光冷却的影响进行了讨论. 进行了积分球冷却⁸⁷Rb实验，实验结果表明积分球有效的冷却了球腔中的铷原子，获得了积分球内冷原子的吸收信号以及冷原子随冷却光失谐的变化曲线. 关键词： 漫反射光场 积分球 全光冷却

Laser cooling of rubidium atoms in an integrating sphere

In this paper, the theory of atomic cooling in an integrating sphere is studied. During designing an integrating sphere system, the effects of the parameters of the sphere on the cooling, including the reflectivity of the material, the shape of the sphere and holes in the sphere have been considered carefully. The experiment of ⁸⁷Rb atomic cooling in an integrating sphere was performed. The experimental results show that the atoms in the integrating sphere are cooled down evidently. And the relation between the detuning of the cooling laser and the absorption signal of cold atoms was measured.