Atomic Relaxation in the Presence of Intense Partially Coherent Radiation Fields

Abstract

I develop a nonperturbative relaxation theory appropriate for an atom subjected to strong finite-bandwidth radiation fields. The partial coherence implied by the finite bandwidth is modeled by simple phase and amplitude correlation functions. Modifications of the Mollow theory of resonance fluorescence are calculated as an example. The finite bandwidth of the applied field does not have a simply additive effect on the predicted fluorescence spectrum.