Influence of higher Coulomb correlations on optical coherent-control signals from a ZnSe quantum well

Titelangaben

Breunig, Hans Georg ; Voss, Tobias ; Rückmann, Ilja ; Gutowski, Jürgen ; Axt, Vollrath Martin ; Kuhn, Tilmann:
Influence of higher Coulomb correlations on optical coherent-control signals from a ZnSe quantum well.
In: Journal of the Optical Society of America B. Bd. 20 (2003) Heft 8 . - S. 1769-1779.
ISSN 1520-8540
DOI: https://doi.org/10.1364/JOSAB.20.001769

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Abstract

The manipulation of the coherent optical polarization in a quantum well with a pair of phase-locked laser pulses is investigated by using wave-mixing signals. The measurements are performed in four- and six-wave-mixing geometries with different polarization states of the excitation pulses. Even at moderate excitation densities, the signals are modulated by higher harmonics that correspond to high-order optical nonlinearities. A significant effect of higher Coulomb correlations on the coherent-control signals is demonstrated by comparing the experiments with calculations based on a microscopic density-matrix theory. The theoretical approach makes use of the dynamics-controlled truncation scheme. The corresponding numerical results are in good agreement with the experiment.