Title :
Development of a cold cesium continuous fountain frequency standard
Author :
Joyet, A. ; Berthoud, P. ; Mileti, Gaetano ; Thomann, P.
Author_Institution :
Obs. de Neuchatel, Switzerland
Abstract :
A laboratory frequency standard based on a continuous fountain of cold cesium atoms is under development. The resonator is assembled and the continuous fountain is now in operation. Measurements of atomic flux and temperature are under way. An analysis of noise in Ramsey resonators shows that, in continuous operation, the atomic noise rather than aliasing effects will remain the limit to the relative frequency instability down to the low 10/sup -14/ range with presently available quartz local oscillators.
Keywords :
atomic clocks; cesium; frequency stability; frequency standards; laser cooling; optical noise; radiation pressure; Cs; Dick effect; Ramsey resonators; atomic flux; atomic noise; atomic temperature; cold cesium atoms; continuous fountain; laboratory frequency standard; laser cooled atomic clocks; microwave cavity; moving molasses; quartz local oscillators; relative frequency instability; Atom lasers; Atomic beams; Atomic measurements; Cooling; Frequency; Laser beams; Magnetic flux; Magnetic separation; Stability; Standards development;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851003
