Title :
KRISS atomic fountain clock: Current status
Author :
Park, Sang Eon ; Li, Long Zhe ; Lee, Sang-Bum ; Yu, Dai-Hyuk ; Park, Chang Yong ; Lee, Won-Kyu ; Kwon, Taeg Yong
Author_Institution :
Center for Time & Freq., Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea
Abstract :
We present a current status of a Rb/Cs double fountain clock developing at KRISS. Fountain clock has cooling laser beam with (111)-geometry so as to enlarge cooling beam diameter. Currently few 107 Cs atoms are trapped and cooled in MOT. And we observed Ramsey fringes. The linewith of central Ramsey fringe was measured to be 1 Hz with the S/N of 600.
Keywords :
atomic clocks; caesium; laser cooling; magneto-optical effects; radiation pressure; rubidium; spectral line breadth; Cs; KRISS atomic fountain clock; MOT; Rb; central Ramsey fringe linewidth; double fountain clock; laser beam cooling; Atomic clocks; Atomic measurements; Cavity resonators; Laser beams; Laser transitions; Semiconductor lasers; Cesium; Fountain clock; Laser cooling; Optical pumping; Primary standard; Ramsey fringes; Rubidium;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6251076
