Observation of optical anisotropy of highly uniform InAs quantum dots

M. Uemura, J. Ohta, R. Yamaguchi, K. Yamaguchi, A. Tackeuchi*

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We have investigated the optical anisotropy of single-layer highly uniform InAs quantum dots (QDs) by photoluminescence (PL) measurements. The high uniformity of the QDs, whose PL spectrum was clearly separated into each energy level, enabled us to observe the optical anisotropy of the ground state, the first excited state and the second excited state separately. The degree of linear polarization (DLP) was obtained to be 15.8%, 14.3% and 8.3% for the ground state, the first excited state and the second excited state, respectively. This result shows that the DLP is smaller for higher-energy states. We also measured the time evolutions of the PL polarization components using a streak camera. The DLP was found to remain constant during the measured time range.

本文言語English
ページ(範囲)463-465
ページ数3
ジャーナルJournal of Crystal Growth
378
DOI
出版ステータスPublished - 2013

ASJC Scopus subject areas

  • 凝縮系物理学
  • 無機化学
  • 材料化学

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