A Superlens Based on Metal-Dielectric Composites

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Pure noble metals are typically considered to be the materials of choice for a near-field superlens that allows subwavelength resolution by recovering both propagating and evanescent waves. However, a superlens based on bulk metal can operate only at a single frequency for a given dielectric host. In this Letter, it is shown that a composite metal-dielectric film, with an appropriate metal filling factor, can operate at practically any desired wavelength in the visible and near-infrared ranges. Theoretical analysis and simulations verify the feasibility of the proposed lens.
15 pages, 4 figures

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Materials Science, Disordered Systems and Neural Networks

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http://salesiana.dossiersoluciones.com/handle/123456789/95886

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0506628
 http://arxiv.org/abs/cond-mat/0506628
 Physical Review B 72, 193101 (2005)
 doi:10.1103/PhysRevB.72.193101

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arXiv