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Conference on Lasers and Electro-Optics

Efficient coupling of light to a single molecule, observation of its fluorescence Mollow triplet, and more

Jaesuk Hwang, G. Wrigge, Ilja Gerhardt, M. Pototschnig, L. Petersen, G. Zumofen, Vahid Sandoghdar

Published Jan 1, 2008• 0 citations
Publisher
DOI
10.1109/qels.2008.4553167

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We investigate cooperative fluorescence in a dilute cloud of strongly driven two-level emitters. Starting from the Heisenberg equations of motion, we compute the first-order scattering corrections to the saturation of the excited-state population and to the resonance-fluorescence spectrum, which both require going beyond the state-of-the-art linear-optics approach to describe collective phenomena. A dipole blockade is observed due to long-range dipole-dipole coupling that vanishes at stronger driving fields. Furthermore, we compute the inelastic component of the light scattered by a cloud of many atoms and find that the Mollow triplet is affected by cooperativity. In a lobe around the forward direction, the inelastic Mollow triplet develops a spectral asymmetry, observable under experimental conditions.