Anti-Parallel Dipole Coupling of Quantum Dots via an Optical Near-Field Interaction(<Special Section>Nanophotonics and Related Techniques)
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概要
- 論文の詳細を見る
We observed the optically forbidden energy transfer between cubic CuCl quantum dots coupled via an optical near-field interaction using time-resolved near-field photoluminescence (PL) spectroscopy. The energy transfer time and exciton lifetime were estimated from the rise and decay times of the PL pump-probe signal, respectively. We found that the exciton lifetime increased as the energy transfer time fell. This result strongly supports the notion that near-field interaction between QD makes the anti-parallel dipole coupling. Namely, a quantum-dots pair coupled by an optical near field has a long exciton lifetime which indicates the antiparallel coupling of QDs forming a weakly radiative quadrupole state.
- 社団法人電子情報通信学会の論文
- 2005-09-01
著者
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Ohtsu Motoichi
Department Of Electrical Engineering And Information Systems The University Of Tokyo
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KAWAZOE Tadashi
Japan Science and Technology Corporation
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Kobayashi K
Department Of Electrical Engineering And Information Systems The University Of Tokyo
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KAWAZOE Tadashi
Department of Electrical Engineering and Information Systems, The University of Tokyo
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KOBAYASHI Kiyoshi
Tokyo Institute of Technology
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OHTSU Motoichi
Japan Science and Technology Agency
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Ohtsu M
Department Of Electrical Engineering And Information Systems School Of Engineering The University Of
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OHTSU Motoichi
The University of Tokyo
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Kobayashi K
Tokyo Institute Of Technology
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Kawazoe T
Department Of Electrical Engineering And Information Systems The University Of Tokyo
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Kobayashi Kiyoshi
Department Of Electrical Engineering And Information Systems The University Of Tokyo
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Ohtsu Motoichi
Department of Electrical Engineering and Information Systems, The University of Tokyo
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