Spectral diffusion in the optical transition of self-assembled GaAs quantum dots is studied using the intensity correlation functions of spectrally filtered photoluminescence signals. Analysis of the bunched photon correlation reveals the statistical nature of frequency drift over six orders of magnitude in time (10−9–10−3 s) with 10 μeV energy resolution.We demonstrate large variation in the characteristic time of spectral diffusion reflecting carrier hopping among limited numbers of trapping sites in the vicinity of a quantum dot.

Bunched photon statistics of the spectrally diffusive photoluminescence of single self-assembled GaAs quantum dots / M. Abbarchi; T. Kuroda; T. Mano; M. Gurioli; K. Sakoda. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 86:(2012), pp. 115330-1-115330-4. [10.1103/PhysRevB.86.115330]

Bunched photon statistics of the spectrally diffusive photoluminescence of single self-assembled GaAs quantum dots

ABBARCHI, MARCO;GURIOLI, MASSIMO;
2012

Abstract

Spectral diffusion in the optical transition of self-assembled GaAs quantum dots is studied using the intensity correlation functions of spectrally filtered photoluminescence signals. Analysis of the bunched photon correlation reveals the statistical nature of frequency drift over six orders of magnitude in time (10−9–10−3 s) with 10 μeV energy resolution.We demonstrate large variation in the characteristic time of spectral diffusion reflecting carrier hopping among limited numbers of trapping sites in the vicinity of a quantum dot.
2012
86
115330-1
115330-4
M. Abbarchi; T. Kuroda; T. Mano; M. Gurioli; K. Sakoda
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/770053
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