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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 spectral switching and evaluated its dynamics by controlling the dipole- forbidden optical near-field energy transfer among resonant exciton states using lD-ZnO nanorod double-quantum-well structures.
GaN dots on AlN layers were grown on sapphire substrates by rf-nitrogen plasma molecular beam epitaxy. Size control of QDs by strain modification using various growth techniques is demonstrated to achieve emission energies ranging from 2.5 eV to 3.9 eV . In self-organized GaN QDs, the quantum confinement effect observed in the "classical" GaAs-based QD or QW, is offset by the large piezoelectric...
We report deep-level emission-free UV emission and lasing from ZnO nanostructures fabricated via a simple method involving the low-temperature oxidation of metallic Zn.
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