The role of optical excitation power on the emission spectra of a strongly coupled quantum dot-micropillar system

S. Muench, S. Reitzenstein*, P. Franeck, A. Loeffler, T. Heindel, Sven Höfling, L. Worschech, A. Forchel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

A strongly coupled quantum dot-micropillar cavity system is studied under variation of the excitation power. The characteristic double peak spectral shape of the emission with a vacuum Rabi splitting of 85 mu eV at low excitation transforms gradually into a single broad emission peak when the excitation power is increased. Modelling the experimental data by a recently published formalism [Laussy et al., Phys. Rev. Lett. 101, 083601 (2008)] yields a transition from strong coupling towards weak coupling which is mainly attributed to an excitation power driven decrease of the exciton-photon coupling constant. (C) 2009 Optical Society of America

Original languageEnglish
Pages (from-to)12821-12828
Number of pages8
JournalOptics Express
Volume17
Issue number15
Publication statusPublished - 20 Jul 2009

Keywords

  • MICROCAVITIES

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