Magnetic-field interaction of spatially confined quantum-well exciton-polaritons

被引：1
|
作者：
Rahimi-Iman, A. [1 ,2 ]
Schneider, C. [1 ,2 ]
Fischer, J. [1 ,2 ]
Holzinger, S. [1 ,2 ]
Amthor, M. [1 ,2 ]
Worschech, L. [1 ,2 ]
Reitzenstein, S. [1 ,2 ]
Hoefling, S. [1 ,2 ]
Forchel, A. [1 ,2 ]
Kamp, M. [1 ,2 ]
机构：
[1] Univ Wurzburg, Inst Phys, Tech Phys, D-97074 Am Hubland, Germany
[2] Univ Wurzburg, Wilhelm Conrad Rontgen Res Ctr Complex Mat Syst, D-97074 Am Hubland, Germany
来源：
20TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF HIGH MAGNETIC FIELDS IN SEMICONDUCTOR PHYSICS (HMF-20) | 2013年 / 456卷
关键词：
BOSE-EINSTEIN CONDENSATION; MICROCAVITY; ENHANCEMENT;
D O I：
10.1088/1742-6596/456/1/012033
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on pronounced magneto-optical effects of trapped polariton modes in a single InGaAs quantum well microresonator with a lithographically defined modulation of the cavity length. In our optical polariton traps with diameters ranging from 1 to 10 mu m, a confinement potential of 7.5 meV is achieved. In magnetic-field dependent experiments, a diamagnetic shift and a Zeeman splitting of the trap-modes are observed which confirms that the polaritonic nature of the quantized emission modes are preserved even for traps as small as 1 mu m. Furthermore, focusing on theoretical estimates using a simple model, we have identified a clear correlation between the polaritons' magnetic response and their excitonic fraction, corresponding to the Hopfield coefficients of the composite particles.
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页数：6
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