Demonstration of strong coupling via electro-optical tuning in high-quality QD-micropillar systems

We demonstrate electro-optical tuning of single quantum dots (QDs) embedded in high-quality (high-Q) micropillar cavities by exploiting the quantum confined Stark effect (QCSE). Combining electrically contacted high-Q micropillars and large In(0.3) Ga(0.7)As QDs with high oscillator strength facilit...

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Published inOptics express Vol. 16; no. 19; pp. 15006 - 15012
Main Authors Kistner, C, Heindel, T, Schneider, C, Rahimi-Iman, A, Reitzenstein, S, Höfling, S, Forchel, A
Format Journal Article
LanguageEnglish
Published United States 15.09.2008
Subjects
Computer Simulation
Computer-Aided Design
Electronics - instrumentation
Equipment Design
Equipment Failure Analysis
Models, Theoretical
Oscillometry - instrumentation
Quantum Dots
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Summary:We demonstrate electro-optical tuning of single quantum dots (QDs) embedded in high-quality (high-Q) micropillar cavities by exploiting the quantum confined Stark effect (QCSE). Combining electrically contacted high-Q micropillars and large In(0.3) Ga(0.7)As QDs with high oscillator strength facilitates the realization of strong coupling. In our experiments a single QD exciton was electrically tuned on resonance with a cavity mode of a micropillar with 1.9 microm diameter and a quality-factor (Q-factor) of 14,000 enabling the observation of strong coupling with a vacuum Rabi-Splitting of 63 microeV.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.015006