Relaxation and emission of Bragg-mode and cavity-mode polaritons in a ZnO microcavity at room temperature

被引：33

作者：

Faure, S. ^{[1
]}

Brimont, C. ^{[1
]}

Guillet, T. ^{[1
]}

Bretagnon, T. ^{[1
]}

Gil, B. ^{[1
]}

Medard, F. ^{[2
]}

Lagarde, D. ^{[2
]}

Disseix, P. ^{[2
]}

Leymarie, J. ^{[2
]}

Zuniga-Perez, J. ^{[3
]}

Leroux, M. ^{[3
]}

Frayssinet, E. ^{[3
]}

Moreno, J. C. ^{[3
]}

Semond, F. ^{[3
]}

Bouchoule, S. ^{[4
]}

机构：

[1] Univ Montpellier 2, CNRS, GES, UMR5650, F-34095 Montpellier, France

[2] UBP CNRS, UMR 6602, LASMEA, F-63177 Aubiere, France

[3] CRHEA CNRS, F-06560 Valbonne, France

[4] LPN CNRS, F-91460 Marcoussis, France

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 12期

关键词：

22;

D O I：

10.1063/1.3232228

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The strong coupling regime in a ZnO microcavity is investigated through room temperature photoluminescence and reflectivity experiments. The simultaneous strong coupling of excitons to the cavity mode and the first Bragg mode is demonstrated at room temperature. The polariton relaxation is followed as a function of the excitation density, showing a nonthermal polariton distribution. A relaxation bottleneck is evidenced in the Bragg-mode polariton branch. It is partly broken under strong excitation density, so that the emission from this branch dominates the one from cavity-mode polaritons. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3232228]

引用

页数：3

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