Magic wavelength measurement of the 87Sr optical lattice clock at NIM

Qiang Wang*, Yi Ge Lin, Fei Meng, Ye Li, Bai Ke Lin, Er Jun Zang, Tian Chu Li, Zhan Jun Fang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

11 引用 (Scopus)

摘要

We report on the magic wavelength measurement of our optical lattice clock based on fermion strontium atoms at the National Institute of Metrology (NIM). A Ti:sapphire solid state laser locked to a reference cavity inside a temperature-stabilized vacuum chamber is employed to generate the optical lattice. The laser frequency is measured by an erbium fiber frequency comb. The trap depth is modulated by varying the lattice laser power via an acousto-optic modulator. We obtain the frequency shift coefficient at this lattice wavelength by measuring the differential frequency shift of the clock transition of the strontium atoms at different trap depths, and the frequency shift coefficient at this lattice wavelength is obtained. We measure the frequency shift coefficients at different lattice frequencies around the magic wavelength and linearly fit the measurement data, and the magic wavelength is calculated to be 368554672(44) MHz.

源语言英语
文章编号103201
期刊Chinese Physics Letters
33
10
DOI
出版状态已出版 - 10月 2016
已对外发布

指纹

探究 'Magic wavelength measurement of the 87Sr optical lattice clock at NIM' 的科研主题。它们共同构成独一无二的指纹。

引用此