Measurement of optical absorption by a single quantum dot exciton -: art. no. 241310

被引：114

作者：

Guest, JR ^{[1
]}

Stievater, TH

Li, XQ

Cheng, J

Steel, DG

Gammon, D

Katzer, DS

Park, D

Ell, C

Thränhardt, A

Khitrova, G

Gibbs, HM

机构：

[1] Univ Michigan, Harrison M Randall Lab Phys, Ann Arbor, MI 48109 USA

[2] USN, Res Lab, Washington, DC 20375 USA

[3] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.65.241310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the optical absorption due to an exciton confined to a single interface fluctuation quantum dot by directly measuring the transmission through both a submicron aperture and near-field microscopy. The measurements reveal large dipole moments approaching 100 D at 6 K. These results are compared to theoretical predictions based on a physical size estimated from photoluminescence excitation spectroscopy. The very large dipole moment makes these quantum dots attractive candidates for use in microcavities and quantum logic gates.

引用

页码：2413101 / 2413104

页数：4

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