Spin-polarized spontaneous-force atom trap.
Spin-polarized spontaneous-force atom trap.
复制标题
自旋极化自发力原子陷阱。
DOI：
10.1103/physrevlett.69.2168
复制
发表时间：
1992
影响因子：
8.6
通讯作者：
Williamson
中科院分区：
文献类型：
--
作者：
Walker;Feng;Hoffmann;Williamson
我们给出了一个自发力光陷阱的观测结果，在这个陷阱中，Rb原子通过光泵浦被自旋极化。利用与塞曼位移光囚禁相同的力在二维实现稳定捕获，在第三维通过对光偏振和磁场不敏感的宏观涡旋力实现稳定捕获。当沿着这第三个方向的光被圆偏振并施加平行磁场时，原子变得自旋极化。
We present observations of a spontaneous-force optical trap in which rubidium atoms are spin polarized by optical pumping. Stable trapping is achieved in two dimensions by the same force as in the Zeeman-shift optical trap, and in the third dimension by a macroscopic vortex force that is insensitive to light polarizations and magnetic fields. When the light along this third direction is circularly polarized and a parallel magnetic field is applied, the atoms become spin polarized.