Two-phonon capture processes into quantum dots: The role of intermediate states

Ingibjörg Magnúsdóttir, A. V. Uskov, Svend Bischoff, Bjarne Tromborg, Jesper Mørk

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

We present a study of carrier capture into quantum dots via emission of longitudinal optical phonons. Two-phonon capture times are found to be of the order of some picoseconds at carrier densities 10^1^7cm^-^3 in situations where single-phonon capture processes are energetically prohibited. The influence of different intermediate carrier states on the two-phonon capture rate is investigated and found to exhibit effects of interference between the different contributions.
Original languageEnglish
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume17
Issue number1-4
Pages (from-to)111-113
ISSN1386-9477
DOIs
Publication statusPublished - 2003
Event International Conference on Superlattices Nano-Structures and Nano-Devices (ICSNN-02) - Toulouse, France
Duration: 22 Jul 200226 Jul 2002

Conference

Conference International Conference on Superlattices Nano-Structures and Nano-Devices (ICSNN-02)
CountryFrance
CityToulouse
Period22/07/200226/07/2002

Keywords

  • Quantum dots
  • Carrier capture
  • Carrier–phonon interaction

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