Observation of bottleneck effects on the photoluminescence from polaritons in II-VI microcavities

被引：13

作者：

Müller, M

Bleuse, J

André, R

Ulmer-Tuffigo, H

机构：

[1] CEA Grenoble, Dept Rech Fondamentale Mat Condensee, SP2M, PSC, F-38054 Grenoble 9, France

[2] Univ Grenoble 1, CNRS, UMR5588, Spectrometrie Phys Lab, F-38042 Grenoble, France

来源：

PHYSICA B | 1999年 / 272卷 / 1-4期

关键词：

microcavity polaritons; bottleneck; dark states;

D O I：

10.1016/S0921-4526(99)00324-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The photoluminescence dynamics of microcavity polaritons are investigated by ps time-resolved measurements as a function of the photon-exciton detuning in the low, non-resonant excitation regime. For negative detuning, we observe the appearance of a relaxation slow-down accompanied by a build-up of a non-equilibrium polariton population on the exciton-like part of the lower branch. Finally, the role in the PL dynamics of the dark excitonic states existing in microcavities containing several quantum wells as alternative relaxation channels is addressed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：476 / 479

页数：4

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