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We developed a self-assembly method for alignment of ZnO quantum dots (QDs) into a straight line. The polarization dependence of photoluminescence intensity revealed the signal transmission via an optical near-field along the QD chain.
Nanophotonics is defined, and a physical picture of dressed photons is presented. Room-temperature nanophotonic logic gates and related devices are demonstrated. An application for an optical router system is also reviewed.
For future optical transmission systems with high data transmission rates and capacity, we have proposed nanometer-scale photonic devices (i.e., nanophotonics devices). These devices consist of nanometer-scale dots, and an optical near-field is used as the signal carrier.
We demonstrate system architectures for nanophotonics that enable optical near-field interactions in the nanometer-scale expolited for ultra-high density system integrations beyond the diffraction limit of light and achieving novel functionalities in information and communications applications.
We report nanophotonic energy up-conversion operation in ZnO nanorod double-quantum-well structures assisted by the optical absorption of phonons via an optical near-field.
We observed energy transfers among quantum dots dynamically. The energy transfer occurs from smaller to larger quantum dots in 150 ps and is applicable to the nanophotonic buffering device.
We propose and demonstrate a memory-based computation architecture combining data summation and broadcast mechanisms using optical near-field interactions between quantum dots, which will allow high-density integration beyond the diffraction-limit of light.
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