中国物理B ›› 2018, Vol. 27 ›› Issue (5): 53201-053201.doi: 10.1088/1674-1056/27/5/053201
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
Hui Liu(刘慧), Kun-Liang Jiang(姜坤良), Jin-Qi Wang(王进起), Zhuan-Xian Xiong(熊转贤), Ling-Xiang He(贺凌翔), Bao-Long Lü(吕宝龙)
Hui Liu(刘慧)1,2,3, Kun-Liang Jiang(姜坤良)1,2,3, Jin-Qi Wang(王进起)1,2,3, Zhuan-Xian Xiong(熊转贤)1,2, Ling-Xiang He(贺凌翔)1,2, Bao-Long Lü(吕宝龙)1,2
摘要: We report a clock transition spectrum approach, which is used to calibrate the zero-crossing temperature and frequency drift of an ultralow expansion (ULE) cavity with a Hertz level resolution. With this approach, the linear and nonlinear drifts of the ULE cavity along a variety of controlled temperatures are clearly presented. When the controlled temperature of ULE cavity is tuned away from the zero-crossing temperature of the ULE cavity, the cavity shows larger and larger nonlinear drift. According to our theoretical analysis and experimental results, we investigate more details of the drift property of the ULE cavity around the zero-crossing temperature, which has seldom been explored before. We can definitely conclude that the zero-crossing temperature of our ULE cavity used in an ytterbium (Yb) lattice clock is around 31.7℃.
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