Spatial-contrast analysis in a cold-atom Sagnac interferometer with a single large Raman beam

被引:5
作者
Kim, Tae Hyun [1 ]
Yim, Sin Hyuk [1 ]
Shim, Kyu Min [1 ]
Lee, Sangkyung [1 ]
机构
[1] Agcy Def Dev, Daejoen 34186, South Korea
关键词
GYROSCOPE; CONSTANT; GRAVITY;
D O I
10.1103/PhysRevA.95.033632
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have developed a cold atom Sagnac interferometer with a single large Raman beam. In combination with a time-of-flight measurement performed by thin probe beams, the variation in spatial contrast of the atomic Mach-Zehnder interference was analyzed by considering the spatial intensity profile of the single large Raman beam and the spatial density profile of the atomic cloud. Based on our analysis, we determined that contrast enhancement is attainable using the spatial selection of the atomic cloud but it reduces angular velocity sensitivity.
引用
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页数:6
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