Four-Wave Mixing Spectroscopy of Quantum Dot Molecules
A. Sitek and P. Machnikowski
Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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Received: 9 06 2007;
We study theoretically the nonlinear four-wave mixing response of an ensemble of coupled pairs of quantum dots (quantum dot molecules). We discuss the shape of the echo signal depending on the parameters of the ensemble: the statistics of transition energies and the degree of size correlations between the dots forming the molecules.
DOI: 10.12693/APhysPolA.112.167
PACS numbers: 78.67.Hc, 78.47.+p