作者
JR Guest, TH Stievater, Xiaoqin Li, Jun Cheng, DG Steel, D Gammon, DS Katzer, D Park, C Ell, A Thränhardt, G Khitrova, HM Gibbs
发表日期
2002/6/10
期刊
Physical Review B
卷号
65
期号
24
页码范围
241310
出版商
American Physical Society
简介
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.
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JR Guest, TH Stievater, X Li, J Cheng, DG Steel… - Physical Review B, 2002