Metamaterial as a controllable template for nanoscale field localization

Tsung-Sheng Kao, F. M. Huang, Y. Chen, E. T.F. Rogers, N. I. Zheludev

研究成果: Article同行評審

14 引文 斯高帕斯(Scopus)


We report that subwavelength localization of light in the near-field of a double-periodic photonic metamaterial may be efficiently controlled by the polarization and wavelength of the incident radiation. A dramatic variation in the periodic near-field landscapes, including a transition from a pattern of isolated subwavelength plasmon hot-spots to a blurred, low contrast pattern, accompanied by a change in the pattern's symmetry has been observed in the proximity of an aluminum nanowire "fish-scale" nanostructure. Hot-spots as small as 0.23λ have been achieved and their position has been controlled by tuning the wavelength of incident light across the dipole absorption resonance of the metamaterial. A simple switch of the polarization state can lead to a spatial period doubling in the landscape pattern.

期刊Applied Physics Letters
出版狀態Published - 8 2月 2010


深入研究「Metamaterial as a controllable template for nanoscale field localization」主題。共同形成了獨特的指紋。