Title :
Precise theory of the light shift in optical frequency standards
Author :
Pal´chikov, V.G. ; Ovsiannikov, V.D.
Author_Institution :
Inst. of Metrol. for Time & Space, Nat. Res. Inst. for Phys-Tech. & Radiotech. Meas., Moscow, Russia
Abstract :
A general method is presented for calculating the higher-order terms of series in powers of the ac laser field for the Stark-state wavefunctions and corresponding frequency shifts of alkaline-earth atoms. It is based on the Green´s function method for summation over all intermediate states. Numerical calculations of ac multipole polarizabilities and dipole hyperpolarizabilities for the light shift of 5s2 1S0 - 5s5p 3P0 (MJ=0) transition frequency in 87Sr atoms have been performed in connection with precise measurements on cooled and trapped alkaline-earth atoms and the design of precise optical frequency standards.
Keywords :
Green´s function methods; Stark effect; frequency standards; laser cooling; polarisability; spectral line shift; strontium; Greens function method; Sr; Stark state wavefunctions; ac laser field power series; ac multipole polarizabilities; alkaline earth atoms frequency shift; cooled alkaline earth atoms; dipole hyperpolarizabilities; intermediate states; light shift; optical frequency standards; precise theory; transition frequency; trapped alkaline earth atoms; Atom lasers; Atom optics; Atomic beams; Atomic measurements; Frequency; Green´s function methods; Laser theory; Optical polarization; Power lasers; Strontium;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1275076
