1Goldsmith J E M,Weber E W,Hansch T W.New measurement of the rydberg constant using polarization spectroscopy of Hα[J].Phys.Rev.Lett,1978,41(22):1525-1528.
2Salomon C,Dalibard J,Philips W D,et al.Laser cooling of cesium atoms below 3 μK[J].Eur.Lett,1990,12(8):683-688.
3Wansch T W,Shahin I S,Schawlow A L.High-resolution saturation spectroscopy of sodium D lines with a pulsed tunable dye laser[J].Phys Rev lett,1971,27:707-710.
4Maguire L P,van Bijnen Rmw,Mese E,et al.Theoretical calculation of saturated absorption spectra for multi-level atoms[J].J.Phys.B:At.Mol.Opt.Phys,2006,39:2709-2720.
5Smith D A,Hughes I G.The role of hyperfine pumping in multilevel systems exhibiting saturated absorption[J].Am.J.Phys,2004,72:631-637.
6A Sargsyan,D Sarkisyan,A Papoyan.Saturated absorption spectroscopy:elimination of crossover resonances by use a nanocellI[J].Laser.phys,2008,18(6):749-755.