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Spectroscopy of individual AlGaAs microdisks in large periodic arrays

Kipp, T. ; Petter, K. ; Heyn, Ch. ; Heitmann, Detlef ; Schüller, Christian


Optical properties of individual Al0.2Ga0.8As/Al0.4Ga0.6As multiple quantum well microdisks in large periodic arrays are investigated by micro-photoluminescence spectroscopy at room temperature. We can produce arrays where the shape of the individual disks ranges from circular over quadratic to laterally coupled structures. For circular disks we observe several whispering gallery modes over a ...


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