Electro-optical switching between polariton and cavity lasing in an InGaAs quantum well microcavity

M. Amthor, S. Weißenseel, J. Fischer, M. Kamp, C. Schneider, S. Höfling

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

We report on the condensation of microcavity exciton polaritons under optical excitation in a microcavity with four embedded InGaAs quantum wells. The polariton laser is characterized by a distinct non-linearity in the input-output-characteristics, which is accompanied by a drop of the emission linewidth indicating temporal coherence and a characteristic persisting emission blueshift with increased particle density. The temporal coherence of the device at threshold is underlined by a characteristic drop of the second order coherence function to a value close to 1. Furthermore an external electric field is used to switch between polariton regime, polariton condensate and photon lasing.
Original languageEnglish
Pages (from-to)31146-31153
Number of pages8
JournalOptics Express
Volume22
Issue number25
Early online date8 Dec 2014
DOIs
Publication statusPublished - 15 Dec 2014

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