Optical anisotropy and pinning of the linear polarization of light in semiconductor microcavities

被引：78
|
作者：
Klopotowski, L.
Martin, M. D.
Amo, A.
Vina, L. [1 ]
Shelykh, I. A.
Glazov, M. M.
Malpuech, G.
Kavokin, A. V.
Andre, R.
机构：
[1] Univ Autonoma Madrid, Dept Fis Mat, SEMICUAM, E-28049 Madrid, Spain
[2] Univ Clermont Ferrand 2, CNRS, LASMEA, F-63177 Clermont Ferrand, France
[3] St Petersburg State Polytech Univ, St Petersburg 195251, Russia
[4] RAS, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
[5] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England
[6] Univ Grenoble 1, CNRS, Spectrometrie Phys Lab, F-38402 Grenoble, France
来源：
SOLID STATE COMMUNICATIONS | 2006年 / 139卷 / 10期
基金：
俄罗斯基础研究基金会;
关键词：
polaritons; polarization; birefringence; time-resolved spectroscopy;
D O I：
10.1016/j.ssc.2006.07.016
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report strong experimental evidence of the optical anisotropy in a CdTe-based microcavity: the polarization of light is pinned to one of the crystallographic axes independently of the polarization of the excitation. The polarization degree depends strongly on the excitation power, reaching almost 100% in the stimulated regime. The relaxation time of the polarization is about 1 ns. We argue that all of this is an effect of a splitting of the polariton doublet at k = 0. We consider different sources for the splitting and conclude that the most likely one is optical birefringence in the mirrors and/or the cavity. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：511 / 515
页数：5
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