Influence of the excitonic broadening on the strong light-matter coupling in bulk zinc oxide microcavities

被引：7
|
作者：
Medard, F. [1 ,2 ]
Lagarde, D. [1 ,2 ]
Zuniga-Perez, J. [3 ]
Disseix, P. [1 ,2 ]
Mihailovic, M. [1 ,2 ]
Leymarie, J. [1 ,2 ]
Frayssinet, E. [3 ]
Moreno, J. C. [3 ]
Semond, F. [3 ]
Leroux, M. [3 ]
Bouchoule, S. [4 ]
机构：
[1] Univ Clermont Ferrand, Clermont Univ, LASMEA, F-63000 Clermont Ferrand, France
[2] CNRS, UMR 6602, F-63177 Aubiere, France
[3] CRHEA CNRS, F-06560 Valbonne, France
[4] LPN CNRS, F-91460 Marcoussis, France
来源：
JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 04期
关键词：
MOLECULAR-BEAM EPITAXY; ROOM-TEMPERATURE; ZNO; POLARITONS; (111)SI; GROWTH; SINGLE;
D O I：
10.1063/1.3476553
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present an experimental study of the influence of excitonic broadening on the strong-coupling regime in a bulk-ZnO microcavity. At room temperature, the strong coupling is highlighted using both angle-resolved reflectivity and photoluminescence measurements; a Rabi splitting value of 40 meV is determined. The polaritonic behavior is also evidenced at low temperature, even if a bulklike reflectivity signature is observed in the excitonic range. Using transfer-matrix calculations, this phenomenon is explained through the influence of the huge excitonic absorption whose contribution depends on the broadening value. Finally, we demonstrate that this effect should not prevent a lasing from the polaritons. (C) 2010 American Institute of Physics. [doi:10.1063/1.3476553]
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页数：5
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