Resonant Transmission of Electromagnetic Fields through Subwavelength Zero-$\epsilon$ Slits
Optics
2008-09-15 v1 Other Condensed Matter
Abstract
We theoretically investigate the transmission of electromagnetic radiation through a metal plate with a zero- metamaterial slit, where the permittivity tends towards zero over a given bandwidth. Our analytic results demonstrate that the transmission coefficient can be substantial for a broad range of slit geometries, including subwavelength widths that are many wavelengths long. This novel resonant effect has features quite unlike the Fabry-P\'{e}rot-like resonances that have been observed in conductors with deep channels. We further reveal that these high impedance ultranarrow zero- channels can have significantly {\it greater} transmission compared to slits with no wave impedance difference across them.
Keywords
Cite
@article{arxiv.0808.1635,
title = {Resonant Transmission of Electromagnetic Fields through Subwavelength Zero-$\epsilon$ Slits},
author = {Klaus Halterman and Simin Feng},
journal= {arXiv preprint arXiv:0808.1635},
year = {2008}
}