Electrically driven high-Q quantum dot-micropillar cavities

被引：131

作者：

Boeckler, C. ^{[1
]}

Reitzenstein, S. ^{[1
]}

Kistner, C. ^{[1
]}

Debusmann, R. ^{[1
]}

Loeffler, A. ^{[1
]}

Kida, T. ^{[1
]}

Hoefling, S. ^{[1
]}

Forchel, A. ^{[1
]}

Grenouillet, L. ^{[2
]}

Claudon, J. ^{[3
]}

Gerard, J. M. ^{[3
]}

机构：

[1] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany

[2] MINATEC, CEA, LETI, F-38054 Grenoble 9, France

[3] Inst Nanosci & Cryogenie, CEA, CNRS, Grp Nanophys & Semicond,SP2 M, F-38054 Grenoble 9, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 09期

关键词：

D O I：

10.1063/1.2890166

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on electrically pumped high-Q quantum dot-micropillar cavities with quality factors of up to 16.000. A special current injection scheme using a ring-shaped upper contact is presented which ensures an efficient light out-coupling through the uncapped upper surface of the micropillar. The devices feature excellent single-quantum dot cavity quantum electrodynamic effects with a Purcell enhancement of about 10 for a micropillar with a diameter of 2.5 mu m. (C) 2008 American Institute of Physics.

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页数：3

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