https://doi.org/10.1140/epjb/e2003-00270-8
Far-infrared probe of size dispersion and population fluctuations in doped self-assembled quantum dots
1
Laboratoire de Physique de la Matière 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
Corresponding author: a Louis-Anne.deVaulchier@lpmc.ens.fr
Received:
7
May
2003
Revised:
22
July
2003
Published online:
2
October
2003
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.
PACS: 73.21.La – Quantum dots / 78.20.Ls – Magnetooptical effects / 78.30.Fs – III-V and II-VI semiconductors / 78.67.Hc – Quantum dots
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
