Anomalous time evolution of exciton coherence in highly-stacked InAs quantum dots

J. Ishi-Hayase, K. Akahane, N. Yamamoto, M. Kujiraoka, K. Ema, M. Sasaki

研究成果: Conference contribution

抄録

We perform a transient four-wave mixing experiment to investigate the initial dynamics of the time evolution of exciton coherence in highly-stacked InAs quantum dots. For short time delays, an oscillatory behavior with a period of 31 ps is observed only in the weak excitation regime. The excitation density and polarization dependence of this oscillation cannot be explained by the usual quantum beat phenomena such as biexcitonic and bright excitonic beats.

本文言語English
ホスト出版物のタイトルPhysics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B
ページ973-974
ページ数2
DOI
出版ステータスPublished - 2007 12 1
外部発表はい
イベント28th International Conference on the Physics of Semiconductors, ICPS 2006 - Vienna, Austria
継続期間: 2006 7 242006 7 28

出版物シリーズ

名前AIP Conference Proceedings
893
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other28th International Conference on the Physics of Semiconductors, ICPS 2006
国/地域Austria
CityVienna
Period06/7/2406/7/28

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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