%0 Journal Article
%T Temperature dependence of the zero-phonon linewidth in quantum dots: An effect of the fluctuating environment
%+ Laboratoire Pierre Aigrain (LPA)
%+ Nanophysique et Semiconducteurs (NPSC)
%A Favero, Ivan
%A Berthelot, Alice
%A Cassabois, Guillaume
%A Voisin, Christophe
%A Delalande, Claude
%A Roussignol, Philippe
%A Ferreira, Robson
%A Gérard, Jean-Michel
%< avec comité de lecture
%Z Optique Cohérente et Non Linéaire
%@ 1098-0121
%J Physical Review B: Condensed Matter and Materials Physics (1998-2015)
%I American Physical Society
%V 75
%P 073308
%8 2007
%D 2007
%Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles
%X We report systematic measurements on the broadening of the emission spectrum of single quantum dots as a function of temperature and incident power. Spectral diffusion effects in the motional narrowing regime provide a quantitative interpretation of our experimental results. We show that, at low incident power, the thermal activation of spectral diffusion results in a Lorentzian zero-phonon line with a width that increases linearly with temperature. Our study provides a unified interpretation to the widely debated issue of the dispersion of the data on the temperature dependence of this zero-phonon linewidth. Our explanation is based on an original model where acoustic phonons interact with carriers outside the quantum dot.
%G English
%2 https://hal.science/hal-00284909/document
%2 https://hal.science/hal-00284909/file/Cassabois.pdf
%L hal-00284909
%U https://hal.science/hal-00284909
%~ CEA
%~ UNIV-PARIS7
%~ ENS-PARIS
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%~ LPA
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