Development of a cold cesium continuous fountain frequency standard

Author

Joyet, A. ; Berthoud, P. ; Mileti, Gaetano ; Thomann, P.

Author_Institution

Obs. de Neuchatel, Switzerland

fYear

2000

fDate

14-19 May 2000

Firstpage

315

Lastpage

316

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2000 Conference on

Conference_Location

Sydney, NSW, Australia

Print_ISBN

0-7803-5744-2

Type

conf

DOI

10.1109/CPEM.2000.851003

Filename

851003