Influence of carrier dynamics on the modulation bandwidth of quantum-dot based nanocavity devices

Michael Lorke, Torben Roland Nielsen, Jesper Mørk

Research output: Contribution to journalJournal articlepeer-review

Abstract

We theoretically investigate the modulation response of quantum-dot based nanocavity light emitting devices. For high Purcell enhancement factors, our theory predicts the possibility of decreasing the modulation bandwidth with increasing scattering rate into the lasing quantum-dot state. This counterintuitive effect is investigated using a microscopic semiconductor model. The resulting guidelines for possible optimizations of quantum-dot based nanocavity laser devices are given.
Original languageEnglish
JournalApplied Physics Letters
Volume97
Issue number21
Pages (from-to)211106
ISSN0003-6951
DOIs
Publication statusPublished - 2010

Keywords

  • quantum dot lasers
  • semiconductor quantum dots
  • light emitting diodes

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