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

Shohgo Yamauchi, Kazuhiro Komori, Isao Morohashi, Keishiro Goshima, Takeyoshi Sugaya, Toshihide Takagahara

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The interdot correlation in a single pair of InAsGaAs 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.

Original languageEnglish
Article number182103
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number18
DOIs
Publication statusPublished - 2005 Oct 31
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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