Development of an Yb Optical Lattice Clock at KRISS

D. -H. Yu,C. Y. Park,W. -K. Lee,E. B. Kim, J. Mun

Bulletin of the American Physical Society（2012）

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摘要

An Yb optical lattice clock is under development at KRISS. Yb atoms were trapped in an optical lattice and further optimization is underway. Linewidth of the probe laser at 578 nm developed by sum frequency generation (SFG) method was reduced to less than 100 Hz. We also developed an optical frequency synthesizer (OFS) with the carrier-envelope-offset frequency locked to 0 Hz using the “direct locking method”.

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关键词

atomic clocks,frequency measurement,optical lattices,ytterbium,KRISS,Yb,absolute frequency measurement,frequency 394798.18 Hz,lattice laser magic wavelength,optical lattice clock transition,Optical clock,clock transition of 171Yb atoms,magic wavelength,optical lattice clock,precision measurements

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