Linewidth broadening and emission saturation of a resonantly excited quantum dot monitored via an off-resonant cavity mode

A. Ulhaq, Serkan Ates, S. Weiler, S.M. Ulrich, S. Reitzenstein, A. Löffler, S. Höfling, L. Worschech, A. Forchel, P. Michler

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Abstract

We report on the robustness of a detuned mode channel for reading out the relevant s-shell properties of a resonantly excited coupled quantum dot (QD) in a pillar microcavity. The line broadening of the QD s-shell is “monitored” by the mode signal with high conformity to the directly measured QD linewidth. The mode signal also monitors the saturation behavior of a near Fourier transform-limited photon emission from a resonantly excited QD. We also investigate the temperature dependence of the coupling mechanism between an off-resonant QD and a cavity mode under pure resonant excitation of the quantum emitter.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume82
Issue number4
Pages (from-to)045307
ISSN0163-1829
DOIs
Publication statusPublished - 2010

Bibliographical note

Copyright 2010 American Physical Society

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