Clock-transition spectrum of 171Yb atoms in a one-dimensional optical lattice

doi:10.1088/1674-1056/22/9/090601

中国物理B ›› 2013, Vol. 22 ›› Issue (9): 90601-090601.doi: 10.1088/1674-1056/22/9/090601

Clock-transition spectrum of ¹⁷¹Yb atoms in a one-dimensional optical lattice

陈宁, 周敏, 陈海琴, 方苏, 黄良玉, 张晓航, 高琪, 蒋燕义, 毕志毅, 马龙生, 徐信业

State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China

收稿日期:2013-03-11 修回日期:2013-04-08 出版日期:2013-07-26 发布日期:2013-07-26
基金资助:
Project supported by the National Basic Research Program of China (Grant Nos. 2012CB821302 and 2010CB922903), the National Natural Science Foundation of China (Grant Nos. 11134003 and 10774044), and the Shanghai Excellent Academic Leaders Program of China (Grant No. 12XD1402400).

Clock-transition spectrum of ¹⁷¹Yb atoms in a one-dimensional optical lattice

State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China

Received:2013-03-11 Revised:2013-04-08 Online:2013-07-26 Published:2013-07-26
Contact: Xu Xin-Ye E-mail:xyxu@phy.ecnu.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant Nos. 2012CB821302 and 2010CB922903), the National Natural Science Foundation of China (Grant Nos. 11134003 and 10774044), and the Shanghai Excellent Academic Leaders Program of China (Grant No. 12XD1402400).

摘要/Abstract

摘要： An optical atomic clock with ¹⁷¹Yb atoms is devised and tested. By using a two-stage Doppler cooling technique, the ¹⁷¹Yb atoms are cooled down to a temperature of 6±3 μK, which is close to the Doppler limit. Then, the cold ¹⁷¹Yb atoms are loaded into a one-dimensional optical lattice with a wavelength of 759 nm in the Lamb-Dicke regime. Furthermore, these cold ¹⁷¹Yb atoms are excited from the ground-state ¹S₀ to the excited-state ³P₀ by a clock laser with a wavelength of 578 nm. Finally, the ¹S₀-³P₀ clock-transition spectrum of these ¹⁷¹Yb atoms is obtained by measuring the dependence of the population of the ground-state ¹S₀ upon the clock-laser detuning.

关键词: optical lattice clocks, laser cooling and trapping, ytterbium, clock-transition spectrum

Abstract: An optical atomic clock with ¹⁷¹Yb atoms is devised and tested. By using a two-stage Doppler cooling technique, the ¹⁷¹Yb atoms are cooled down to a temperature of 6±3 μK, which is close to the Doppler limit. Then, the cold ¹⁷¹Yb atoms are loaded into a one-dimensional optical lattice with a wavelength of 759 nm in the Lamb-Dicke regime. Furthermore, these cold ¹⁷¹Yb atoms are excited from the ground-state ¹S₀ to the excited-state ³P₀ by a clock laser with a wavelength of 578 nm. Finally, the ¹S₀-³P₀ clock-transition spectrum of these ¹⁷¹Yb atoms is obtained by measuring the dependence of the population of the ground-state ¹S₀ upon the clock-laser detuning.

Key words: optical lattice clocks, laser cooling and trapping, ytterbium, clock-transition spectrum

中图分类号: (Time and frequency)

06.30.Ft

32.30.-r (Atomic spectra?) 37.10.De (Atom cooling methods) 37.10.Jk (Atoms in optical lattices)

陈宁, 周敏, 陈海琴, 方苏, 黄良玉, 张晓航, 高琪, 蒋燕义, 毕志毅, 马龙生, 徐信业. Clock-transition spectrum of ¹⁷¹Yb atoms in a one-dimensional optical lattice[J]. 中国物理B, 2013, 22(9): 90601-090601.

Chen Ning (陈宁), Zhou Min (周敏), Chen Hai-Qin (陈海琴), Fang Su (方苏), Huang Liang-Yu (黄良玉), Zhang Xiao-Hang (张晓航), Gao Qi (高琪), Jiang Yan-Yi (蒋燕义), Bi Zhi-Yi (毕志毅), Ma Long-Sheng (马龙生), Xu Xin-Ye (徐信业). Clock-transition spectrum of ¹⁷¹Yb atoms in a one-dimensional optical lattice[J]. Chin. Phys. B, 2013, 22(9): 90601-090601.

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Clock-transition spectrum of ¹⁷¹Yb atoms in a one-dimensional optical lattice

Clock-transition spectrum of ¹⁷¹Yb atoms in a one-dimensional optical lattice

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