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 articleResearchpeer-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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