典型文献
High-performance coherent population trapping clock based on laser-cooled atoms
文献摘要：
We present a coherent population trapping clock system based on laser-cooled 87Rb atoms.The clock consists of a frequency-stabilized CPT interrogation laser and a cooling laser as well as a compact magneto-optical trap,a high-performance microwave synthesizer,and a signal detection system.The resonance signal in the continuous wave regime exhibits an absorption contrast of～50％.In the Ramsey interrogation method,the linewidth of the central fringe is 31.25 Hz.The system achieves fractional frequency stability of 2.4×10-11/√τ,which goes down to 1.8×10-13 at 20000 s.The results validate that cold atom interrogation can improve the long-term frequency stability of coherent population trapping clocks and holds the potential for developing compact/miniature cold atoms clocks.
文献关键词：
中图分类号：
作者姓名：
Xiaochi Liu;Ning Ru;Junyi Duan;Peter Yun;Minghao Yao;Jifeng Qu
作者机构：
Center for Advanced Measurement Science,National Institute of Metrology,Beijing 100029,China;National Time Service Center,Chinese Academy of Sciences,Xi'an 710600,China;College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China
文献出处：
引用格式：
[1]Xiaochi Liu;Ning Ru;Junyi Duan;Peter Yun;Minghao Yao;Jifeng Qu-.High-performance coherent population trapping clock based on laser-cooled atoms)[J].中国物理B（英文版）,2022(04):301-305
A类：
synthesizer
B类：
High,performance,coherent,population,trapping,laser,cooled,atoms,We,present,system,87Rb,consists,frequency,stabilized,CPT,interrogation,cooling,well,compact,magneto,optical,high,microwave,signal,detection,resonance,continuous,regime,exhibits,absorption,contrast,In,Ramsey,method,linewidth,central,fringe,achieves,fractional,stability,which,goes,down,results,validate,that,cold,can,improve,long,term,clocks,holds,potential,developing,miniature
AB值：
0.535702
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