Title :
To simulate blackbody radiation frequency shift in cesium fountain frequency standard with CO/sub 2/ laser
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing
Abstract :
An experimental scheme to simulate the blackbody radiation (BBR) frequency shift with carbon dioxide (CO2) laser in cesium fountain frequency standard is proposed. The alternative (ac) electric field from a CO2 laser with 10.6 mum wavelength causes the similar ac Stark shift of the clock transition frequency, but with much higher intensity than BBR power intensity at about room temperature. This scheme provides a simple, new method for measuring the BBR frequency shift in fountain clock. It provides the possibility to explain the difference of BBR shifts in Cs fountain clocks between two measurement methods
Keywords :
Stark effect; atom-photon collisions; atomic clocks; blackbody radiation; caesium; carbon compounds; frequency standards; 10.6 mum; CO2; Cs; ac Stark shift; blackbody radiation; cesium fountain frequency standard; clock transition frequency; frequency shift; Carbon dioxide; Clocks; Electric fields; Frequency measurement; Laser transitions; Magnetic field measurement; Power lasers; Temperature; Uncertainty; Wavelength measurement;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2006.1678197
