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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