Evanescent light-wave atomic funnel: A tandem hollow-fiber, hollow-beam approach

被引:52
作者
Yin, JP [1 ]
Zhu, YF
Wang, YZ
机构
[1] Florida Int Univ, Dept Phys, Miami, FL 33199 USA
[2] Suzhou Univ, Dept Phys, Jiangsu 215006, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Lab Quantum Opt, Shanghai 201800, Peoples R China
来源
PHYSICAL REVIEW A | 1998年 / 57卷 / 03期
关键词
D O I
10.1103/PhysRevA.57.1957
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose an atomic funnel consisting of a dark hollow, divergent laser beam and an evanescent light in a short micron-sized hollow optical fiber. The cold atoms extracted from a magneto-optical trap experience effective Sisyphus cooling in the dark hollow beam. We calculate the potential barriers for atomic guiding, in the evanescent Light and the dark hollow beam, and analyze the atomic losses during the guiding and funneling process. Our results show that the equilibrium three-dimensional root-mean-square momentum of about 4.5 (h) over bar k (temperature similar to 2.5 mu K) and the funneling efficiency of about 95% could be obtained. A low-velocity, intense coherent atomic beam can be generated in this funnel scheme and its potential applications in atom optics are briefly discussed.
引用
收藏
页码:1957 / 1966
页数:10
相关论文
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