Intradot dynamics of InAs quantum dot based electroabsorbers

Piwonski, Tomasz and Pulka, Jaroslaw and Madden, Gillian and Huyet, Guillaume and Houlihan, John and Viktorov, Evgeny A. and Erneux, Thomas and Mandel, Paul (2009) Intradot dynamics of InAs quantum dot based electroabsorbers. Applied Physics Letters, 94 (12). ISSN 0003-6951

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The carrier relaxation and escape dynamics of InAs/GaAs quantum dot waveguide absorbers is studied using heterodyne pump-probe measurements. Under reverse bias conditions, we reveal differences in intradot relaxation dynamics, related to the initial population of the dots' ground or excited states. These differences can be attributed to phonon-assisted or Auger processes being dominant for initially populated ground or excited states, respectively.

Item Type: Article
Additional Information: Funding Information: The authors would like to acknowledge informative discussions with Stephen Hegarty and Bob Manning. This study has been supported by Science Foundation Ireland under Contract No. SFI 07/IN.1/I929, the INSPIRE Programme, funded by the Irish Government’s Programme for Research in Third Level Institutions, Cycle 4, National Development Plan 2007-2013, and the Institute of Technology Ireland’s Strand I Programme. The authors in Bruxelles acknowledge the support of the Fonds National de la Recherche Scientifique (Belgium).
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3101
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Depositing User: Admin SSL
Date Deposited: 19 Oct 2022 23:02
Last Modified: 30 Jun 2023 00:50

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