首页|Physics package based on intracavity laser cooling 87Rb atoms for space cold atom microwave clock
Physics package based on intracavity laser cooling 87Rb atoms for space cold atom microwave clock
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NETL
NSTL
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This article proposes a new physics package to enhance the frequency stability of the space cold atom clock with the advantages of a microgravity environment.Clock working processes,including atom cooling,atomic state preparation,microwave interrogation,and transition probability detection,are integrated into the cylindrical microwave cavity to achieve a high-performance and compact physics package for the space cold atom clock.We present the detailed design and ground-test results of the cold atom clock physics package in this article,which demonstrates a frequency stability of 1.2 × 10-12 τ-1/2 with a Ramsey linewidth of 12.5 Hz,and a better performance is predicted with a 1 Hz or a narrower Ramsey linewidth in microgravity environment.The miniaturized cold atom clock based on intracavity cooling has great potential for achieving space high-precision time-frequency reference in the future.
NETL
NSTL
万方数据
