Abstract
We report on the development of a microwave frequency standard based on a laser-cooled
171
Y
b
+
ion trap system. The electronics , lasers, and magnetic shields are integrated into a single physical package. With over 105 ions are stably trapped, the system offers a high signal-to-noise ratio Ramsey line-shape. In comparison with previous work, the frequency instability of a
171
Y
b
+
microwave clock was further improved to
8.5
×
10
−
13
/
τ
for averaging times between 10 and 1000 s. Essential systematic shifts and uncertainties are also estimated.
Funder
National Natural Science Foundation of China
Tsinghua University Initiative Scientific Research Program
National Key Research and Development Program of China
Subject
Atomic and Molecular Physics, and Optics
Cited by
10 articles.
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