Few-particle effects in the optical spectra of semiconductor quantum dots

被引:33
作者
Hohenester, U
Rossi, F
Molinari, E
机构
[1] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy
[2] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy
关键词
semiconductors; nanostructures; optical properties; electron-electron interaction;
D O I
10.1016/S0038-1098(99)00191-X
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We analyze few-particle effects in the optical spectra of semiconductor quantum dots using a density-matrix approach that explicitly accounts for exciton-exciton, as well as exciton-carrier interactions. We give a consistent description of additional peaks appearing at high photoexcitation density, and predict that a strong polarization dependence should be characteristic of few-particle features. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:187 / 192
页数:6
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