Modulation response of quantum dot nanolight-emitting-diodes exploiting purcell-enhanced spontaneous emission

Troels Suhr Skovgård, Niels Gregersen, Michael Lorke, Jesper Mørk

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    Abstract

    The modulation bandwidth for a quantum dot light-emitting device is calculated using a detailed model for the spontaneous emission including the optical and electronic density-of-states. We show that the Purcell enhancement of the spontaneous emission rate depends critically on the degree of inhomogeneous broadening relative to the cavity linewidth and can improve the modulation speed only within certain parameter regimes.
    Original languageEnglish
    JournalApplied Physics Letters
    Volume98
    Issue number21
    Pages (from-to)211109
    ISSN0003-6951
    DOIs
    Publication statusPublished - 2011

    Bibliographical note

    Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, Volume 98, Issue 21 and may be found at http://apl.aip.org/resource/1/applab/v98/i21/p211109_s1

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