Light Frequency Shift in a Cesium Beam Frequency Standard with S harp Angle Incident Laser Light Pumping

本文对斜入射激光抽 运斜入射激光检测小型铯原子钟实验系统上光抽运区荧光引起的光频移(主要是交流斯塔克 移动)作了理论计算。结果表明斜光抽运方案可以有效降低铯原子束频标中的光频移。文中 同时提出一种通过改变斜入射抽运激光发散角来直接测量光频移的新方法。In the experimental system of the smal l cesium beam frequency standard with sharp angle incident laser light pumping a nd sharp angle incident laser light probing,the light frequency shift (mainly ca used by AC Stark effect) caused by fluorescence from pumping region was calculat ed theoretically.The results show,the light frequency shift can be effectively r educed in the sharp angle laser light pumping scheme.In additon,a new method to measure the light frequency shift by changing the diffusing angle of the pumping laser light beam was presented in this paper.国家自然科学基金0151-541