Nanophotonic switch using ZnO nanorod double-quantum-well structures

作者：Yatsui Takashi^*; Sangu Suguru; Kawazoe Tadashi; Ohtsu Motoichi; An Sung Jin; Yoo Jinkyoung; Yi Gyu Chul

来源：Applied Physics Letters, 2007, 90(22): 223110.

DOI：10.1063/1.2743949

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.

• 出版日期2007-5-28