Four-wave mixing with Rydberg levels in rubidium vapor: Observation of interference fringes
Wictor C. Magno, Renata Benedicto Prandini, P. Nussenzveig +1 more
We present new results on the coherent control of a four-wave mixing signal in rubidium vapor involving Rydberg levels. By varying the relative polarizations of the laser beams responsible for the nonlinear process, we control atomic excitation routes and thus quantum interference in the medium. We observed interference fringes as a function of the relative polarizations and further developed a theoretical model based on the density-matrix formalism that is in very good agreement with our experimental results.
Physical Review A•May 8, 2001•30 citations