Photon antibunching in single CdSe/ZnS quantum dot fluorescence

被引：278

作者：

Lounis, B ^{[1
]}

Bechtel, HA

Gerion, D

Alivisatos, P

Moerner, WE

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

[2] Univ Bordeaux 1, CPMOH, F-33405 Talence, France

[3] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 329卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(00)01042-3

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：

We investigate the fluorescence intensity correlation function of a single CdSe quantum dot (QD) using a start-stop experiment. We observe strong photon antibunching, a signature of non-classical light emission, over a large range of intensities (0.1-100 kW/cm(2)). The lack of coincidence at zero time delay indicates a highly efficient Auger ionization process, which suppresses multi-photon emission in these colloidal QDs. Using careful analysis of the saturation behavior of the coincidence histograms, the absorption cross-section of a single QD has also been derived. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：399 / 404

页数：6

共 20 条

[1] Evidence for a thermal contribution to emission intermittency in single CdSe/CdS core/shell nanocrystals [J].