Observation of spontaneous spin polarization in an optically pumped cesium vapor

被引：15
|
作者：
Klipstein, WM
Lamoreaux, SK
Fortson, EN
机构：
[1] Department of Physics, University of Washington, Seattle, WA, 98195
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 13期
关键词：
D O I：
10.1103/PhysRevLett.76.2266
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have observed spontaneous atomic spin polarization of a Cs vapor undergoing rapid spin exchange in a cell when illuminated with plane-polarized 894 nm (D1) light. The spin polarization shows marked hysteresis in switching between two stable orientations, fully aligned parallel or antiparallel to an external magnetic field, as the circular polarization of the pump light is varied about zero. We show that our observations agree with theoretical expectations and point out possible applications of spontaneous polarization.
引用
收藏
页码：2266 / 2269
页数：4
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