Development of a cesium atomic fountain frequency standard

Author

Kwon, Taeg Yong ; Lee, Ho Seong ; Yang, Sung Hoon ; Park, Sang Eon

Author_Institution

Time & Frequency Lab., Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea

Volume

52

Issue

2

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

263

Lastpage

266

Abstract

We report on the development of a cesium atomic fountain frequency standard at the Korea Research Institute of Standards and Science (KRISS). Cesium atoms were launched upwards by using an optical moving molasses method after they were cooled in a magnetooptical trap. The temperature of launched atoms was about 2.5 μK. From our cesium atomic fountain, we were able to observe Ramsey fringes of 1 Hz linewidth on the 9.2 GHz clock transition of cesium atoms.

Keywords

caesium; fluorescence; frequency standards; laser cooling; magneto-optical effects; 1 Hz; 2.5 muK; 9.2 GHz; Cs; Ramsey fringe linewidth; atomic clock transitions; cesium atom launching; cesium atomic fountain frequency standards; fluorescence; laser cooled atoms; laser cooling; launched atom temperature; magnetooptical traps; optical moving molasses methods; Atom lasers; Atom optics; Atomic beams; Charge carrier processes; Coils; Fluorescence; Frequency; Laboratories; Magnetic shielding; Standards development;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2003.811680

Filename

1202025