| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 851728 | Optik - International Journal for Light and Electron Optics | 2010 | 4 Pages |
Abstract
The extraordinary transmission spectrum of a copper film pierced by a periodic array of subwavelength rectangular holes is measured by the terahertz time-domain spectroscopy. The transmission coefficient is strongly dependent on the angle between the polarization of terahertz electric field and the latitudinal direction of the periodic apertures. When the angle increases from 0o to 90o, a peak becomes stronger and another peak reduces. The transmission is proposed to be the contributions of localized surface plasmons inside the apertures. The finite-difference-time-domain (FDTD) simulation results are in good agreement with experimental observations.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Dan Hu, Yan Zhang,