Absolutely Direct Frequency Measurement of Two-Photon Transition Using Multi-Peak Fitting Approach
Shao-Yang Dai1 , Kun-Qian Li1 , Yue-Yang Zhai1** , Wei Xia2 , Qing Wang1 , Wei Xiong1 , Xiang-Hui Qi1 , Xu-Zong Chen1**
1 Institute of Quantum Electronics, School of Electronics Engineering and Computer Sciences, Peking University, Beijing 1008712 Jiangsu Key Laboratory on Opto-electronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing 210046
Abstract ：The optical frequency comb has been widely used in precision measurement. In this study, a multi-peak fitting approach is first proposed to fit the two-photon transition spectrum which overlaps with the neighboring transition in $^{87}$Rb. The multi-peak fitting approach is used to eliminate the frequency shift affected by the neighboring transition. With locking the carrier envelope offset frequency at 1/4 repetition frequency, the transition frequency is measured to be 770569132739.9$\pm$5.8 kHz, which agrees well with the previous result recommended by Comité International des Poids et Mesures.
收稿日期: 2016-08-24
出版日期: 2016-12-29
:
32.10.Fn
(Fine and hyperfine structure)
32.30.Jc
(Visible and ultraviolet spectra)
32.70.Jz
(Line shapes, widths, and shifts)
32.80.Rm
(Multiphoton ionization and excitation to highly excited states)
引用本文:
. [J]. 中国物理快报, 2017, 34(1): 13201-013201.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/34/1/013201
或
https://cpl.iphy.ac.cn/CN/Y2017/V34/I1/13201
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2017, Vol. 34 
