%0 Journal Article
%T Efficient acoustic phonon broadening in single self-assembled InAs/GaAs quantum dots
%+ Laboratoire Pierre Aigrain (LPA)
%+ Laboratoire de photonique et de nanostructures (LPN)
%A Kammerer, Claire
%A Cassabois, Guillaume
%A Voisin, C.
%A Delalande, C.
%A Roussignol, P.
%A Lemaitre, A.
%A Gerard, Jm
%< avec comité de lecture
%Z GES:02-010
%@ 1098-0121
%J Physical Review B: Condensed Matter and Materials Physics (1998-2015)
%I American Physical Society
%V 65
%P 033313
%8 2002
%D 2002
%R 10.1103/PhysRevB.65.033313
%K SCATTERING
%K RELAXATION
%K MECHANISM
%K GROWTH
%K STATES
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X We report systematic temperature-dependent measurements of photoluminescence excitation spectra in single self-assembled InAs/GaAs quantum dots. We studied the increase with temperature of the excited-state homogeneous linewidth for different quantum dots. We found a correlation between the acoustic phonon broadening efficiency and the background intensity in the photoluminescence excitation spectra. These results demonstrate the interaction of the discrete quantum dot excited states with a quasicontinuum of states and impose severe limitations on the isolated artificial macroatom scheme for a single quantum dot.
%G English
%L hal-00546741
%U https://hal.science/hal-00546741
%~ UNIV-PARIS7
%~ ENS-PARIS
%~ UPMC
%~ LPA
%~ CNRS
%~ PSL
%~ UPMC_POLE_2
%~ SORBONNE-UNIVERSITE
%~ SU-SCIENCES
%~ UNIV-PARIS
%~ ENS-PSL
%~ ALLIANCE-SU