Giant optical anisotropy in cylindrical self-assembled InAs/GaAs quantum rings

被引：6

作者：

Zhang, Weiwei ^{[1
]}

Su, Zhiqiang ^{[1
]}

Gong, Ming ^{[1
]}

Li, Chuan-Feng ^{[1
]}

Guo, Guang-Can ^{[1
]}

He, Lixin ^{[1
]}

机构：

[1] Chinese Acad Sci, Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China

来源：

EPL | 2008年 / 83卷 / 06期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1209/0295-5075/83/67004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a single-particle atomistic pseudopotential method followed by a configuration interaction treatment to many-particle interactions, we investigate the geometry, electronic structures and optical transitions of a self-assembled InAs/GaAs quantum ring (QR), with its shape changing continuously from a lens-shaped quantum dot (QD) to a nearly one-dimensional ring. We find that the biaxial strain inside the ring is strongly asymmetric in the plane perpendicular to the QR growth direction, leading to a giant optical anisotropy. Copyright (C) EPLA, 2008

引用

页数：5

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