A Longitudinal Zeeman Slower Based on Ring-Shaped Permanent Magnets for a Strontium Optical Lattice Clock

作者：Wang Qiang^*; Lin Yi-Ge; Gao Fang-Lin; Li Ye; Lin Bai-Ke; Meng Fei; Zang Er-Jun; Li Tian-Chu; Fang Zhan-Jun

来源：Chinese Physics Letters, 2015, 32(10): 100701.

DOI：10.1088/0256-307X/32/10/100701

• ATOMIC CLOCK
• DIPOLES

We report a longitudinal Zeeman slower based on ring-shaped permanent magnetic dipoles used for the strontium optical lattice clock. The Zeeman slower is composed of 40 permanent magnets with the same outer diameter but different inner diameters. The maximum variation of the axial field from its target values is less than 2%. In most parts of the Zeeman slower, the intensity variations of the field in radial spatial distribution are less than 0.1 mT. With this Zeeman slower, the strontium atoms are slowed down to 95 m/s, and approximately 2% of the total atoms are slowed down to less than 50 m/s.

• 出版日期2015-10
• 单位清华大学; 中国计量科学研究院; 中国石油天然气股份有限公司勘探开发研究院