Recent progress on the 27Al+ ion optical clock

被引：7

作者：

Xu, Z. T. ^{[1
]}

Yuan, W. H. ^{[1
]}

Zeng, X. Y. ^{[1
]}

Che, H. ^{[1
]}

Shi, X. H. ^{[1
]}

Deng, K. ^{[1
]}

Zhang, J. ^{[1
]}

Lu, Z. H. ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Phys Quant Measurement, Wuhan 430074, Peoples R China

来源：

8TH SYMPOSIUM ON FREQUENCY STANDARDS AND METROLOGY 2015 | 2016年 / 723卷

关键词：

D O I：

10.1088/1742-6596/723/1/012026

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An aluminium ion optical clock is under development at Huazhong University of Science and Technology. The Mg-25(+) ion is chosen as logic ion to sympathetically cool an Al+ ion and to detect its states. The Mg-25(+) ion is cooled to the motional ground state through Raman sideband cooling as the first step for quantum logic spectroscopy. Ultra-stable lasers for the interrogation of the clock transition are developed. The instability of the laser beat frequency is 1.2x10(-15) at 1 s, which is close to the thermal noise limit of the reference cavity.

引用

页数：6

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