Nanophotonic switch using ZnO nanorod double-quantum-well structures
Nanophotonic switch using ZnO nanorod double-quantum-well structures
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DOI：
10.1063/1.2743949
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发表时间：
2007-05-28
影响因子：
4
通讯作者：
Yi, Gyu-Chul
中科院分区：
文献类型：
--
作者：
Yatsui, Takashi;Sangu, Suguru;Yi, Gyu-Chul
本文报道了用于纳米级光子器件的ZnO/ZnMgO纳米棒双量子阱结构（DQWs）的时间分辨近场光谱。他们观察到dqw的共振耦合激子态之间的居群的章动。此外，他们通过光学近场控制偶极子非活性态的激子激发，证明了开关动力学。本文描述的孤立dqw的时间分辨近场光谱结果是设计纳米级光子开关和相关器件的有希望的一步。(C) 2007年美国物理研究所。
The authors report on time-resolved near-field spectroscopy of ZnO/ZnMgO nanorod double-quantum-well structures (DQWs) for a nanometer-scale photonic device. They observed nutation of the population between the resonantly coupled exciton states of DQWs. Furthermore, they demonstrated switching dynamics by controlling the exciton excitation in the dipole-inactive state via an optical near field. The results of time-resolved near-field spectroscopy of isolated DQWs described here are a promising step toward designing a nanometer-scale photonic switch and related devices. (C) 2007 American Institute of Physics.