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Proceedings Paper

Anomalous radiative lifetime in quantum rods
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Paper Abstract

We observe an anomalous exciton lifetime in columnar InAs/GaAs quantum rods by using the time-resolved differential reflectivity (TRDR) technique. At low excitation density, the decay time of the TRDR signal show a clear excitonic type of behavior. At increased excitation, a resonant radiative lifetime develops, which seems to be dependent on the excited QD density being resonant with the probe laser spectrum. We interpret the resonance behavior as due to electromagnetic coupling between the excited QDs resonant with the probe laser.

Paper Details

Date Published: 8 September 2006
PDF: 9 pages
Proc. SPIE 6328, Nanomodeling II, 63280T (8 September 2006); doi: 10.1117/12.680363
Show Author Affiliations
D. Sreenivasan, Eindhoven Univ. of Technology, COBRA Inter-Univ. Research Institute (Netherlands)
J. E. M. Haverkort, Eindhoven Univ. of Technology, COBRA Inter-Univ. Research Institute (Netherlands)
R. Nötzel, Eindhoven Univ. of Technology, COBRA Inter-Univ. Research Institute (Netherlands)
S. A. Maksimenko, Belarus State Univ. (Belarus)
G. Ya. Slepyan, Belarus State Univ. (Belarus)


Published in SPIE Proceedings Vol. 6328:
Nanomodeling II
Akhlesh Lakhtakia; Sergey A. Maksimenko, Editor(s)

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