The effects of the non-uniformity of Raman laser beams on an atom interferometer

被引：6
|
作者：
Cheng, Bing [1 ]
Wang, Zhaoying [1 ]
Wu, Bin [1 ]
Xu, Aopeng [1 ]
Wang, Qiyu [1 ]
Lin, Qiang [1 ]
机构：
[1] Zhejiang Univ, Dept Phys, Inst Opt, Hangzhou 310027, Zhejiang, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL D | 2014年 / 68卷 / 11期
基金：
中国国家自然科学基金;
关键词：
GRAVITATIONAL ACCELERATION; GYROSCOPE;
D O I：
10.1140/epjd/e2014-40698-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The effects of the non-uniformity of intensity profile of Raman laser beams on an atom interferometer are investigated both theoretically and experimentally. The analytical expression of the dependence of the atom interference signal on the beam parameters, the atom cloud velocity deviation and the atoms' average velocity is derived. The theoretical results are verified experimentally. The results are consistent with each other. It shows that the flatness of the Raman laser beam and the temperature of the atom cloud are the key issues for an atom interferometer to get high precision.
引用
收藏
页数：7
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