Influence of the shallow impurity enviro
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Arno Hartmann; Yann Ducommun; Manuel BΓ€chthold; Eli Kapon
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Article
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2000
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Elsevier Science
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English
β 345 KB
The evolution of low-temperature photoluminescence (PL) spectra of single GaAs=AlGaAs quantum dots (QD) is studied as a function of laser excitation power. At very low powers, where multi-exciton occupation of the QD can be excluded, an unexpected and pronounced spectral evolution is observed. In th