Nanoantenna-like properties of sea-urchin shaped ZnO as a nanolight filter

作者:Su Yen Husn*; Chen Wei Yu
来源:Applied Physics Letters, 2012, 101(13): 133101.
DOI:10.1063/1.4752467

摘要

A light scattering peak of ZnO rods is presented at 543.2 nm. The radiation peaks of ZnO nanospines correspond to 496.6 nm and 630.6 nm due to the breaking of the symmetry of the ZnO rods. The radiation peaks of sea-urchin shaped ZnO was observed and confirmed by utilizing the dipole approximation. Sea-urchin shaped ZnO can tune and then filter different frequencies of light by utilizing incident light to illuminate at the different positions of sea-urchin shaped ZnO which works like a nanolight filter device and has potential applications in photonic computers, bio-light emission device, and solar cells.