Optical properties of excitons in metal-insulator-semiconductor nanowires

被引：6
|
作者：
Yan, Jie-Yun [1 ,2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 21期
基金：
中国国家自然科学基金;
关键词：
PLASMON INTERACTION; QUANTUM-DOT; HYBRID EXCITONS; PHOTOLUMINESCENCE; MODES; LIGHT;
D O I：
10.1364/OE.21.025607
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The theoretical model for the metal-insulator-semiconductor nanowires is established and the optical properties are investigated. The linear absorption of the hybrid excitons, formed due to the exciton-plasmon interaction, shows obvious red shift on the magnitude of several meVs. The mechanism of the red shift is found to be the joint action of the increased excitonic binding energy attributed to the indirect Coulomb interaction and the decreased effective bandgap caused by the additional self-energy potential. The conclusion is also supported by the evolution of the absorption spectra with the adjustable structural parameters. (C) 2013 Optical Society of America
引用
收藏
页码：25607 / 25618
页数：12
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