Magneto-optical cavity quantum electrodynamics effects in quantum dot - micropillar systems

被引：1
|
作者：
Reitzenstein, S. [1 ]
Muench, S. [1 ]
Gold, P. [1 ]
Franeck, P. [1 ]
Rahimi-Iman, A. [1 ]
Loeffler, A. [1 ]
Hoefling, S. [1 ]
Worschech, L. [1 ]
Ponomarev, I. V. [2 ]
Reinecke, T. L. [2 ]
Forchel, A. [1 ]
机构：
[1] Univ Wurzburg, Tech Phys, D-97074 Wurzburg, Germany
[2] Naval Res Lab, Washington, DC 20375 USA
来源：
HORIBA INTERNATIONAL CONFERENCE: THE 19TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF HIGH MAGNETIC FIELDS IN SEMICONDUCTOR PHYSICS AND NANOTECHNOLOGY | 2011年 / 334卷
关键词：
NANOSTRUCTURES; MICROCAVITY;
D O I：
10.1088/1742-6596/334/1/012011
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report on magneto-optical studies of strongly coupled quantum dot - micropillar cavity systems. Large In0.3Ga0.7As quantum dots (QDs) in the active layer of the micropillar facilitate the observation of strong coupling. In addition, they exhibit a particular large diamagnetic response which is exploited to demonstrate magneto-optical resonance tuning in the strong coupling regime. The magnetic field employed in Faraday configuration induces a transition from strong coupling towards the critical coupling regime which is explained in terms of a magnetic field dependent oscillator strength of the In0.3Ga0.7As QDs. We further study the coherent interaction between spin resolved states of the QDs and microcavity photon modes. A detailed oscillator model is used to extract the associated coupling parameters of the individual spin and cavity modes and reveals an effective coupling between photon modes that is mediated by the exciton spin states.
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页数：8
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