Structural dependency of optical excitation transfer via optical near-field interactions between semiconductor quantum dots
Structural dependency of optical excitation transfer via optical near-field interactions between semiconductor quantum dots
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DOI：
10.1007/s00340-010-3977-y
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发表时间：
2010-07-01
影响因子：
2.1
通讯作者：
Ohtsu, M.
中科院分区：
文献类型：
--
作者：
Nomura, W.;Yatsui, T.;Ohtsu, M.
从理论和实验上研究了量子点的分布依赖性，以及量子点之间通过近场相互作用实现光激发转移的基本性质。分析了量子点的三维结构和排列精度对信号传输性能的影响。此外，量子点分布依赖性的信号传输性能进行了实验评估，通过使用堆叠的CdSe量子点和光学近场光纤探针尖端与量子点层压作为输出端子，显示出良好的协议与理论。这些结果表明，通过光学近场相互作用的信号传输的基本特性，并作为优化的纳米结构设计，以达到所需的信号传输性能的指导方针。
The distribution dependency of quantum dots was theoretically and experimentally investigated with respect to the basic properties optical excitation transfer via optical near-field interactions between quantum dots. The effects of three-dimensional structure and arraying precision of quantum dots on the signal transfer performance were analyzed. In addition, the quantum dot distribution dependency of the signal transfer performance was experimentally evaluated by using stacked CdSe quantum dots and an optical near-field fiber probe tip laminated with quantum dots serving as an output terminal, showing good agreement with theory. These results demonstrate the basic properties of signal transfer via optical near-field interactions and serve as guidelines for a nanostructure design optimized to attain the desired signal transfer performances.