Carrier capture dynamics of InAs∕GaAs quantum dots

Carrier capture dynamics of InAs∕GaAs quantum dots

Carrier dynamics of a 1.3μm InAs∕GaAs quantum dot amplifier is studied using heterodyne pump-probe spectroscopy. Measurements of the recovery times versus injection current reveal a power law behavior predicted by a quantum dot rate equation model. These results indicate that Auger processes dominat...

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Veröffentlicht in:Applied physics letters 2007-03, Vol.90 (12)
Hauptverfasser: Piwonski, T., O’Driscoll, I., Houlihan, J., Huyet, G., Manning, R. J., Uskov, A. V.
Format: Artikel
Sprache:eng
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Zusammenfassung:Carrier dynamics of a 1.3μm InAs∕GaAs quantum dot amplifier is studied using heterodyne pump-probe spectroscopy. Measurements of the recovery times versus injection current reveal a power law behavior predicted by a quantum dot rate equation model. These results indicate that Auger processes dominate the carrier dynamics.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2715115