Far-infrared probe of size dispersion and population fluctuations in doped self-assembled quantum dots |
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| Authors: | J?N?Isaia Email author" target="_blank">L?A?de?VaulchierEmail author S?Hameau R?Ferreira Y?Guldner E?Deleporte J?Zeman V?Thierry-Mieg J?M?Gérard |
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| Institution: | (1) Laboratoire de Physique de la Matiére Condensée, École Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France;(2) Grenoble High Magnetic Field Laboratory, CNRS/MPI, 25 avenue des Martyrs, 38042 Grenoble Cedex 9, France;(3) Laboratoire de Photonique et Nanostructures, Route de Nozay, 91460 Marcoussis, France |
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| Abstract: | We investigate the FIR magneto-optical transitions in doped self-assembled InAs quantum dots with an average filling ranging from 0.6 to 6 electrons per dot. Significant changes in the magnetic field dispersion, the line-width and the amplitude of the transitions are observed as the doping level is varied, in agreement with our theoretical calculations. We show that our technique is an effective tool to obtain informations regarding the dot size homogeneity and the electron filling uniformity.Received: 22 July 2003, Published online: 2 October 2003PACS:
73.21.La Quantum dots - 78.20.Ls Magnetooptical effects - 78.30.Fs III-V and II-VI semiconductors - 78.67.Hc Quantum dotsE. Deleporte: Present address: Laboratoire de Photonique Quantique et Moleculaire, École Normale Superieure de Cachan, 94235 Cachan Cedex, FranceJ.M. Gérard: Present address: CEA-Grenoble DRFMC/SP2M/PSC, Laboratoire de Physique des semiconducteurs, 38054 Grenoble, France |
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| Keywords: | PACS 75 10 Jm Quantized spin models |
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