Title :
Improved absolute frequency measurement of the 171Yb optical lattice clock towards the redefinition of the second
Author :
Yasuda, Makoto ; Inaba, Hiromi ; Kohno, Tohru ; Tanabe, Takasumi ; Nakajima, Yoshiki ; Hosaka, Kazumoto ; Akamatsu, Daisuke ; Onae, Atsushi ; Suzuyama, Tomonari ; Amemiya, Motoyuki ; Feng-Lei Hong
Author_Institution :
Nat. Metrol. Inst. of Japan (NMIJ), AIST, Tsukuba, Japan
Abstract :
We demonstrate an improved absolute frequency measurement of the 1S0-3P0 clock transition at 578 nm in 171Yb atoms in a one-dimensional optical lattice. The absolute frequency is determined as 518 295 836 590 863.1(2.0) Hz relative to the SI second.
Keywords :
frequency measurement; laser variables measurement; optical lattices; ytterbium; 171Yb; absolute frequency measurement; one-dimensional ytterbium optical lattice clock; wavelength 578 nm; Clocks; Frequency measurement; Lattices; Metrology;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
