Defocused wide field fluorescence imaging of single CdSe/ZnS quantum dots

被引：26

作者：

Schuster, R ^{[1
]}

Barth, M ^{[1
]}

Gruber, A ^{[1
]}

Cichos, F ^{[1
]}

机构：

[1] Tech Inst Chemnitz, Inst Phys, D-09107 Chemnitz, Sachsen, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 413卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2005.07.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Within this Letter, we demonstrate the application of defocused wide field fluorescence imaging to single CdSe/ZnS core shell quantum dots to obtain information on their orientation as well as on their transition moment. The emission intensity patterns obtained by the defocused imaging are compared to numerical calculations and reveal, that most of the quantum dots studied, possess an elliptical 2D transition moment, in contrast to the generally assumed circular 2D transition moment. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：280 / 283

页数：4

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