Resonant transparency of materials with negative permittivity
Optics
2009-11-13 v1 Plasma Physics
Abstract
It is shown that the transparency of opaque material with negative permittivity exhibits resonant behavior. The resonance occurs as a result of the excitation of the surface waves at slab boundaries. Dramatic field amplification of the incident evanescent fields at the resonance improves the resolution of the the sub-wavelength imaging system (superlens). A finite thickness slab can be totally transparent to a \textit{p}-polarized obliquely incident electromagnetic wave for certain values of the incidence angle and wave frequency corresponding to the excitation of the surface modes. At the resonance, two evanescent waves have a finite phase shift providing non-zero energy flux through the non-transparent region.
Cite
@article{arxiv.physics/0607130,
title = {Resonant transparency of materials with negative permittivity},
author = {E. Fourkal and I. Velchev and C-M. Ma and A. Smolyakov},
journal= {arXiv preprint arXiv:physics/0607130},
year = {2009}
}