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Homogeneous Linewidth Temperature Dependence of Interfacial GaAs Quantum Dots Studied with Optical 2D Fourier-Transform Spectroscopy

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Abstract

Optical 2D Fourier-transform spectroscopy extracts the temperature-dependent homogeneous lineshape of an ensemble of interfacial quantum dots. The asymmetric lineshape reveals that confinement and excitation-induced dephasing compete with strong exciton-phonon interactions, which dominate at higher temperature.

© 2010 Optical Society of America

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