A new method for coherent control in a quantum dot ensemble

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

Research output: Contribution to journalArticlepeer-review


We propose a new method for controlling macroscopic coherent phenomena by taking advantage of the characteristics of quantum dot (QD) ensembles. We demonstrate that the ensemble average of Rabi oscillations of excitonic polarization can be changed drastically by selecting the spatial distributions of input electric fields. We show that the changes in ensemble averages are caused by polarization interference; the results of our previous experiments agree with our calculations. This result demonstrates that a macroscopic coherent response from a QD ensemble can be controlled by changing the spatial distribution of excitation beams.

Original languageEnglish
Article number012125
JournalJournal of Physics: Conference Series
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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