Comment on absorption and fluorescence in strong frequency-modulated and amplitude-modulated fields.

Abstract

It is shown that the interaction of frequency- and amplitude-modulated optical fields with a two-level atom, as treated by Nayak and Agarwal [Phys. Rev. A 31, 3175 (1985)] and Agarwal and Nayak [J. Phys. B 19, 3385 (1986)], respectively, can be described by the same Bloch equations, and that both have close counterparts in magnetic resonance. The matrix continued-fraction solution for the system is refined, and fluorescence and absorption spectra are explicitly related.