Resonance Fluorescence in 3-Level Systems

Hugh R. Gray, Carlos R. Stroud

A. V. Kruglikov

V. E. Lembessis

M. L. Ladrón de Guevara

Chris Gustin, Ross Manson, Stephen Hughes

We present an open-system master equation study of the coherent and incoherent resonance fluorescence spectrum from a two-level quantum system under coherent pulsed excitation. Several pronounced features that differ from the fluorescence under a constant drive are highlighted, including a multi-peak structure and a pronounced off-resonant spectral asymmetry, in stark contrast to the conventional symmetrical Mollow triplet. We also study semiconductor quantum dot systems using a polaron master equation and show how the key features of dynamic resonance fluorescence change with electron-acoustic-phonon coupling.

W. J. Mielniczuk

The spectrum of a resonance fluorescence emitted by a four-level atomic system interacting with three intense laser beams is calculated analytically. The ratios of areas under peaks of the spectrum are obtained as functions of the Rabi frequencies of incident laser beams and Einstein coefficients of the atomic system. Expressions for positions of peaks are given as well. Differences between the double resonance fluorescence spectrum and the triple resonance fluorescence spectrum are indicated.