Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10−18 Uncertainty.

Autor:	Ohmae, Noriaki, Takamoto, Masao, Takahashi, Yosuke, Kokubun, Motohide, Araki, Kuniya, Hinton, Andrew, Ushijima, Ichiro, Muramatsu, Takashi, Furumiya, Tetsuo, Sakai, Yuya, Moriya, Naoji, Kamiya, Naohiro, Fujii, Kazuaki, Muramatsu, Ryuya, Shiimado, Toshihiro, Katori, Hidetoshi
Předmět:	OPTICAL lattices SPECTROMETRY ATOMIC clocks SEMICONDUCTOR lasers OPTOELECTRONICS
Zdroj:	Advanced Quantum Technologies; Aug2021, Vol. 4 Issue 8, p1-10, 10p
Abstrakt:	Transportable strontium optical lattice clocks are developed with a fractional uncertainty of 5.5 × 10−18 for applications outside laboratories. A single clock consists of a spectroscopy chamber and two laser boxes, where all lasers are based on external cavity diode lasers with an adjustment‐free, laser‐welded output coupler. When this system is transported from the laboratory at RIKEN to a broadcasting tower, the instruments experience acceleration change of 4 G at maximum. However, no serious optical misalignments are found. The demonstration opens up field applications of optical atomic clocks resolving a centimeter height difference. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu Plný text