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Optics Communications

Tunable all-optical bistability in a semiconductor quantum dot damped by a phase-dependent reservoir

M. A. Antón, F. Carreño, Óscar G. Calderón, Sonia Melle

Published Apr 4, 2008• 27 citations
Publisher
DOI
10.1016/j.optcom.2008.02.027

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A systematic investigation is performed on the damping of Rabi oscillations induced by an external electromagnetic field interacting with a two-level semiconductor system. We have considered a coherently driven two-level system coupled to a dephasing reservoir and shown that, to explain the dependence of the dephasing rate on the driving intensity, it is essential to consider the non-Markovian character of the reservoir. Moreover, we have demonstrated that intensity-dependent damping may be induced by various dephasing mechanisms due to stationary as well as non-stationary effects caused by coupling with the environment. Finally, present results are able to explain a variety of experimental measurements available in the literature.