Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
New Doppler-free resonance in field of counterpropagating waves
Denis V. Brazhnikov, А. В. Тайченачев, Anatolii M Tumaikin, Valeriy I. Yudin, Sergei A. Zibrov, Yaroslav O. Dudin, Peter A. Siushev, A. G. Radnaev, Vitaliy V. Vasil'ev, Vladimir L Velichansky
Abstract
The resonance of saturated absorption in counterpropagating light fields is experimentally and theoretically studied. We focus on two cases: parallel and linearly polarized waves, driving an open dipole transition and the general case of elliptically polarized waves, driving closed dipole transition. The former reveals a new Doppler-free resonance as a peak within the saturated-absorption dip. The latter case reveals a new polarization effect, causing a shift and asymmetry of the saturated-absorption resonance. The results obtained can be found useful in metrology.