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- W2090693788 abstract "Single dot photoluminescence spectroscopy was used to study the homogeneous linewidth $ensuremath{Gamma}$ of the ground-state exciton in ${mathrm{In}}_{0.60}{mathrm{Ga}}_{0.40}mathrm{As}/mathrm{GaAs}$ quantum dots as function of temperature T. In high resolution experiments at 2 K, we find a linewidth that is limited by the excitonic lifetime corresponding to a dephasing time of almost a ns. The approximately linear increase of ensuremath{Gamma} with temperature up to $ensuremath{sim}30 ensuremath{mu}mathrm{eV}$ at 60 K is considerably weaker than in structures of higher dimensionality. For higher T we observe a strong enhancement of the linewidth reaching eventually a few meV at room temperature that depends on the confined electronic shell structure." @default.
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- W2090693788 date "2002-01-10" @default.
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- W2090693788 title "Temperature dependence of the exciton homogeneous linewidth in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>In</mml:mi></mml:mrow><mml:mrow><mml:mn>0.60</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>Ga</mml:mi></mml:mrow><mml:mrow><mml:mn>0.40</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mi mathvariant=normal>As</mml:mi><mml:mo>/</mml:mo><mml:mi …" @default.
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- W2090693788 doi "https://doi.org/10.1103/physrevb.65.041308" @default.
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