Three-dimensional dispersive metallic photonic crystals with a bandgap and a high cutoff frequency.
| dc.contributor.author | Luo, Ma | |
| dc.contributor.author | Liu, Qing Huo | |
| dc.coverage.spatial | United States | |
| dc.date.accessioned | 2011-06-21T17:27:42Z | |
| dc.date.issued | 2010-08-01 | |
| dc.description.abstract | The goal of this work is to analyze three-dimensional dispersive metallic photonic crystals (PCs) and to find a structure that can provide a bandgap and a high cutoff frequency. The determination of the band structure of a PC with dispersive materials is an expensive nonlinear eigenvalue problem; in this work we propose a rational-polynomial method to convert such a nonlinear eigenvalue problem into a linear eigenvalue problem. The spectral element method is extended to rapidly calculate the band structure of three-dimensional PCs consisting of realistic dispersive materials modeled by Drude and Drude-Lorentz models. Exponential convergence is observed in the numerical experiments. Numerical results show that, at the low frequency limit, metallic materials are similar to a perfect electric conductor, where the simulation results tend to be the same as perfect electric conductor PCs. Band structures of the scaffold structure and semi-woodpile structure metallic PCs are investigated. It is found that band structures of semi-woodpile PCs have a very high cutoff frequency as well as a bandgap between the lowest two bands and the higher bands. | |
| dc.description.version | Version of Record | |
| dc.identifier | ||
| dc.identifier | 204193 | |
| dc.identifier.eissn | 1520-8532 | |
| dc.identifier.uri | ||
| dc.language | eng | |
| dc.language.iso | en_US | |
| dc.publisher | The Optical Society | |
| dc.relation.ispartof | J Opt Soc Am A Opt Image Sci Vis | |
| dc.relation.journal | Journal of the Optical Society of America A-Optics Image Science and Vision | |
| dc.title | Three-dimensional dispersive metallic photonic crystals with a bandgap and a high cutoff frequency. | |
| dc.title.alternative | ||
| dc.type | Journal article | |
| duke.date.pubdate | 2010-8-0 | |
| duke.description.issue | 8 | |
| duke.description.volume | 27 | |
| pubs.author-url | ||
| pubs.begin-page | 1878 | |
| pubs.end-page | 1884 | |
| pubs.issue | 8 | |
| pubs.organisational-group | Duke | |
| pubs.organisational-group | Electrical and Computer Engineering | |
| pubs.organisational-group | Pratt School of Engineering | |
| pubs.publication-status | Published | |
| pubs.volume | 27 |