Strontium optical lattice clocks for practical realization of the metre and secondary representation of the second

被引:27
|
作者
Bober, Marcin [1 ]
Morzynski, Piotr [1 ]
Cygan, Agata [1 ]
Lisak, Daniel [1 ]
Maslowski, Piotr [1 ]
Prymaczek, Mateusz [1 ]
Wcislo, Piotr [1 ]
Ablewski, Piotr [1 ]
Piwinski, Mariusz [1 ]
Wojtewicz, Szymon [1 ]
Bielska, Katarzyna [1 ]
Bartoszek-Bober, Dobroslawa [1 ]
Trawinski, Ryszard S. [1 ]
Zawada, Michal [1 ]
Ciurylo, Roman [1 ]
Zachorowski, Jerzy [2 ]
Piotrowski, Marcin [2 ]
Gawlik, Wojciech [2 ]
Ozimek, Filip [3 ]
Radzewicz, Czeslaw [3 ]
机构
[1] Nicholas Copernicus Univ, Fac Phys Astron & Informat, Inst Phys, PL-87100 Torun, Poland
[2] Jagiellonian Univ, M Smoluchowski Inst Phys, Fac Phys Astron & Appl Comp Sci, PL-30348 Krakow, Poland
[3] Univ Warsaw, Inst Expt Phys, Fac Phys, PL-02093 Warsaw, Poland
关键词
metrology; time and frequency; optical lattice clock; ATOMIC CLOCK; FREQUENCY; LASER; FIBER; TRANSITIONS; PHASE; TIME;
D O I
10.1088/0957-0233/26/7/075201
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present a system of two independent strontium optical lattice standards probed with a single shared ultranarrow laser. The absolute frequency of the clocks can be verified by the use of Er:fiber optical frequency comb with the GPS-disciplined Rb frequency standard. We report hertz-level spectroscopy of the clock line and measurements of frequency stability of the two strontium optical lattice clocks.
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页数:10
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