About CLAIRON A
About Lab. Primaire du Temps et Frequences, Paris, FRA
About SALOMON C
About ENS, Paris, FRA
About GUELLATI S
About Lab. Aime Cotton, Orsay, FRA
About PHILLIPS W D
About National Inst. Standards and Technology, MD, USA
About Europhysics Letters
About atomic beam
About Ramsey共鳴
About Photon interaction with atoms
About 共鳴