Surface effects in a semiconductor photonic nanowire and spectral stability of an embedded single quantum dot

被引：13

作者：

Yeo, Inah ^{[1
]}

Malik, Nitin S. ^{[2
]}

Munsch, Mathieu ^{[2
]}

Dupuy, Emmanuel ^{[2
]}

Bleuse, Joel ^{[2
]}

Niquet, Yann-Michel ^{[3
]}

Gerard, Jean-Michel ^{[2
]}

Claudon, Julien ^{[2
]}

Wagner, Edouard ^{[1
]}

Seidelin, Signe ^{[1
]}

Auffeves, Alexia ^{[1
]}

Poizat, Jean-Philippe ^{[1
]}

Nogues, Gilles ^{[1
]}

机构：

[1] CEA CNRS UJF, Joint Team Nanophys & Semicond, Inst Neel, CNRS, F-38042 Grenoble 9, France

[2] CEA CNRS UJF, Joint Team Nanophys & Semicond, CEA INAC SP2M, F-38054 Grenoble 9, France

[3] CEA INAC SP2M, Lab Simulat Atomist, F-38054 Grenoble 9, France

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 23期

关键词：

O-2;

D O I：

10.1063/1.3665629

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We evidence the influence of surface effects for InAs quantum dots embedded into GaAs photonic nanowires used as efficient single photon sources. We observe a continuous temporal drift of the emission energy that is an obstacle to resonant quantum optics experiments at the single photon level. We attribute the drift to the sticking of oxygen molecules onto the wire, which modifies the surface charge and hence the electric field seen by the quantum dot. The influence of temperature and excitation laser power on this phenomenon is studied. Most importantly, we demonstrate a proper treatment of the nanowire surface to suppress the drift. (C) 2011 American Institute of Physics. [doi:10.1063/1.3665629]

引用

页数：3

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