Random population model to explain the recombination dynamics in single InAs/GaAs quantum dots under selective optical pumping (Articolo in rivista)

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  • Random population model to explain the recombination dynamics in single InAs/GaAs quantum dots under selective optical pumping (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1367-2630/13/2/023022 (literal)
Alternative label
  • Gomis-Bresco, Jordi 1, Munoz-Matutano, Guillermo 1, Martinez-Pastor, Juan 1, Alen, Benito (2); Seravalli, Luca 3, Frigeri, Paola 3, Trevisi, Giovanna 3, Franchi, Secondo 3 (2011)
    Random population model to explain the recombination dynamics in single InAs/GaAs quantum dots under selective optical pumping
    in New journal of physics; IOP Publishing Ltd. (Institute of Physics Publishing Ltd), "Bristol ; London" (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gomis-Bresco, Jordi 1, Munoz-Matutano, Guillermo 1, Martinez-Pastor, Juan 1, Alen, Benito (2); Seravalli, Luca 3, Frigeri, Paola 3, Trevisi, Giovanna 3, Franchi, Secondo 3 (literal)
Pagina inizio
  • 023022-1 (literal)
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  • ID-PUMA: cnr.imem/2011-A0-059 (literal)
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  • http://iopscience.iop.org/1367-2630/13/2/023022/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 13 (literal)
Rivista
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  • 17 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • [ 1 ] Univ Valencia, Inst Ciencies Mat, Valencia, Spain; [ 2 ] CSIC, CNM, IMM, Madrid 28760, Spain; [ 3 ] CNR, IMEM Inst, I-43100 Parma, Italy (literal)
Titolo
  • Random population model to explain the recombination dynamics in single InAs/GaAs quantum dots under selective optical pumping (literal)
Abstract
  • We model the time-resolved and time-integrated photoluminescence of a single InAs/GaAs quantum dot (QD) using a random population description. We reproduce the joint power dependence of the single QD exciton complexes (neutral exciton, neutral biexciton and charged trions). We use the model to investigate the selective optical pumping phenomenon, a predominance of the negative trion observed when the optical excitation is resonant to a non-intentional impurity level. Our experiments and simulations determine that the negative charge confined in the QD after exciting resonance to the impurity level escapes in 10 ns. (literal)
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