Direct observation of optical excitation transfer based on resonant optical near-field interaction

Wataru Nomura, T. Yatsui, T. Kawazoe, M. Naruse, E. Runge, C. Lienau, M. Ohtsu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This article reports the direct observation of longdistance optical excitation transfer based on resonant optical near-field interactions in randomly distributed quantum dots (QDs). We fabricated optical excitation transfer paths based on randomly distributed QDs by using CdSe/ZnS core-shell QDs and succeeded for the first time in obtaining output signals resulting from a unidirectional optical excitation transfer length of 2.4 μm. Furthermore, we demonstrate that the optical excitation transfer occurs via the resonant excited levels of the QDs with a comparative experiment using nonresonant QDs. This excitation-transfer mechanism allows for intersecting, non-interacting nano-optical wires.

Original languageEnglish
Pages (from-to)257-262
Number of pages6
JournalApplied Physics B: Lasers and Optics
Volume107
Issue number2
DOIs
Publication statusPublished - May 1 2012

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near fields
quantum dots
excitation
interactions
wire
output

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Direct observation of optical excitation transfer based on resonant optical near-field interaction. / Nomura, Wataru; Yatsui, T.; Kawazoe, T.; Naruse, M.; Runge, E.; Lienau, C.; Ohtsu, M.

In: Applied Physics B: Lasers and Optics, Vol. 107, No. 2, 01.05.2012, p. 257-262.

Research output: Contribution to journalArticle

Nomura, W, Yatsui, T, Kawazoe, T, Naruse, M, Runge, E, Lienau, C & Ohtsu, M 2012, 'Direct observation of optical excitation transfer based on resonant optical near-field interaction', Applied Physics B: Lasers and Optics, vol. 107, no. 2, pp. 257-262. https://doi.org/10.1007/s00340-012-5009-6
Nomura, Wataru ; Yatsui, T. ; Kawazoe, T. ; Naruse, M. ; Runge, E. ; Lienau, C. ; Ohtsu, M. / Direct observation of optical excitation transfer based on resonant optical near-field interaction. In: Applied Physics B: Lasers and Optics. 2012 ; Vol. 107, No. 2. pp. 257-262.
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