Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1536317 | Optics Communications | 2012 | 5 Pages |
Abstract
In this paper, we investigate numerically the characteristics of surface plasmon polaritons (SPPs) sustained by two-dimensional arrays of metallic pillars protruding out of planar metal surfaces at terahertz (THz) frequencies. Various shapes of the pillars are analyzed, and it is shown that the pillar shape only has weak influence on the dispersion of spoof SPPs. However, the loss of spoof SPPs is closely dependent on the pillar shape. It is also shown that spoof SPPs on textured surfaces with pillars can exhibit much better confinement than those on pierced surfaces with holes.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Zhen Gao, Linfang Shen, Jin-Jei Wu, Tzong-Jer Yang, Xiaodong Zheng,