TY - JOUR
T1 - Direct observation of optical excitation transfer based on resonant optical near-field interaction
AU - Nomura, Wataru
AU - Yatsui, T.
AU - Kawazoe, T.
AU - Naruse, M.
AU - Runge, E.
AU - Lienau, C.
AU - Ohtsu, M.
PY - 2012/5/1
Y1 - 2012/5/1
N2 - 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.
AB - 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.
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U2 - 10.1007/s00340-012-5009-6
DO - 10.1007/s00340-012-5009-6
M3 - Article
AN - SCOPUS:84861831645
VL - 107
SP - 257
EP - 262
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 2
ER -