Theoretical study of the time-dependent phenomenon of photon-assisted tunneling through a charged quantum dot

Masakazu Muraguchi, Kenji Shiraishi, Takuma Okunishi, Kyozaburo Takeda

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We have studied numerically the time-dependent photon-assisted tunneling (TD-PAT) process for electrons confined in quantum dots (QDs) by employing the finite difference method under the scheme of the TD-density functional theory (DFT). We have found the quasi-dark state (quasi-DS), where the injected electron remains in the QD. By varying the barrier thickness, we have calculated the TD profile of the electron density in a QD, and found the optimal geometry of the lozenge QD. We have also discussed how the charged QD modulates the PAT process.

本文言語English
論文番号064230
ジャーナルJournal of Physics Condensed Matter
21
6
DOI
出版ステータスPublished - 2009 4 9

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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