Resonant transparency of materials with negative permittivity
arXiv:physics/0607130 · doi:10.1016/j.physleta.2006.09.091
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.
References in corpus (4)
- Engineering Electromagnetic Properties of Periodic Nanostructures Using Electrostatic Resonances
- Total absorption of an electromagnetic wave by an overdense plasma
- Optimizing the Superlens: manipulating geometry to enhance the resolution
- Evanescent wave interference and the total transparency of a warm high-density plasma slab