Demonstration of a Sagnac-Type Cold Atom Interferometer with Stimulated Raman Transitions  

作　　者：王平 李润兵 颜辉 王谨 詹明生 

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and ~athematics, Chinese Academy of Sciences, Wuhan 430071 [2]Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 [3]Graduate School, Chinese Academy of Sciences, Beijing 100080

出　　处：《Chinese Physics Letters》2007年第1期27-30,共4页中国物理快报（英文版）

摘　　要：Cbld-matter-wave Sagnac interferometers possess many advantages over their thermal atomic beam counterparts when they are used as precise inertial sensors. We report a realization of a Sagnac-type interferometer with cold atoms. Cold rubidium atoms are prepared in a magneto-optical trap and are pushed by resonant laser pulse to form slow atomic beam. In the interference region, atomic wave packets are coherently manipulated using π/2 -π - π/2 Raman pulse sequences. Interference fringes with maximum contrast of 37% are observed experimentally.Cbld-matter-wave Sagnac interferometers possess many advantages over their thermal atomic beam counterparts when they are used as precise inertial sensors. We report a realization of a Sagnac-type interferometer with cold atoms. Cold rubidium atoms are prepared in a magneto-optical trap and are pushed by resonant laser pulse to form slow atomic beam. In the interference region, atomic wave packets are coherently manipulated using π/2 -π - π/2 Raman pulse sequences. Interference fringes with maximum contrast of 37% are observed experimentally.

分 类 号：O57[理学—粒子物理与原子核物理]