Observation of interdot correlation in single pair of electromagnetically coupled quantum dots

被引:15
|
作者
Yamauchi, S
Komori, K
Morohashi, I
Goshima, K
Sugaya, T
Takagahara, T
机构
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan
[2] Japan Sci & Technol Corp, CREST, Tsukuba, Ibaraki 3050032, Japan
[3] Kyoto Inst Technol, Dept Elect & Informat Sci, Sakyo Ku, Kyoto 6068585, Japan
关键词
D O I
10.1063/1.2120910
中图分类号
O59 [应用物理学];
学科分类号
摘要
The interdot correlation in a single pair of InAs/GaAs barrier-coupled quantum dots (QDs) is investigated by microphotoluminescence spectroscopy, in which each QD is individually excited at unique energy levels. Surprisingly, we observe an anomalous increase in the luminescence intensity when the two QDs are excited simultaneously. This remarkable finding can be interpreted in terms of the electromagnetic coupling between QDs with thick barrier layers. (C) 2005 American Institute of Physics.
引用
收藏
页码:1 / 3
页数:3
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