Time-resolved screening of the piezoelec
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M. Lomascolo; R. Rinaldi; A. Passaseo; M. De Vittorio; M. De Giorgi; R. Cingolan
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Article
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1999
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Elsevier Science
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English
β 56 KB
InGaAs/GaAs V-shaped quantum wires grown in grooves with either (111) or (411) sidewalls have been studied by ps-transient photoluminescence as a function of the excitation intensity. The optical nonlinearity associated with the screening of the internal piezoelectric field is temporally monitored b