Optical properties of wetting layers in
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A.T Winzer; R Goldhahn; G Gobsch; H Heidemeyer; O.G Schmidt; K Eberl
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Article
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2002
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Elsevier Science
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English
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The optical transitions of the wetting layers in two-fold self-assembled InAs=GaAs quantum dot samples are studied as a function of GaAs spacer thickness by various methods. The absorption related studies by photore ectance and selective photoluminescence excitation spectroscopy reveal already for t