Title :
Toward a cesium frequency standard based on a continuous slow atomic beam: preliminary results
Author :
Lee, Ho Seong ; Park, Sang Eon ; Kwon, Taeg Yong ; Yang, Sung Hoon ; Cho, Hyuck
Author_Institution :
Time & Frequency Lab., Korea Res. Inst. of Stand. & Sci., Taejon, South Korea
fDate :
4/1/2001 12:00:00 AM
Abstract :
A continuous beam of slow cesium atoms was produced from a thermal atomic beam by laser cooling. This beam was used as the source for the frequency standard. The Rabi-Ramsey spectrum was observed with the cold atomic beam. The Ramsey fringe of 62-Hz linewidth was obtained from a 21-cm-long microwave cavity. We found that the Rabi-Ramsey spectrum exhibited little dependence on the frequency of the pumping laser because of the long interaction time with the pumping light
Keywords :
atomic beams; atomic clocks; caesium; frequency standards; laser cooling; spectral line breadth; Cs; Cs frequency standard; Rabi-Ramsey spectrum; Ramsey fringe; continuous slow atomic beam; cooled thermal atomic beam; laser cooling; microwave cavity; pumping laser; slow Cs atoms; Atom lasers; Atomic beams; Cooling; Frequency; Laser beams; Laser excitation; Laser stability; Laser transitions; Lasers and electrooptics; Masers;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
