Pl. Kelley et al., RADIATIVE RENORMALIZATION ANALYSIS OF OPTICAL DOUBLE-RESONANCE, Journal of the Optical Society of America. B, Optical physics, 11(11), 1994, pp. 2298-2302
One- and two-photon renormalization is applied to three-level optical
double resonance. An exact steady-state solution to the optical Bloch
equations is given for arbitrarily strong, near-resonant, monochromati
c fields connecting any two of the three possible level pairings. The
results are discussed under various conditions and limits.