학술논문
Superlens imaging theory for anisotropic nanostructured metamaterials with broadband all-angle negative refraction
Document Type
Working Paper
Author
Source
Phys. Rev. B 77, 233101 (2008)
Subject
Language
Abstract
We show that a metamaterial consisting of aligned metallic nanowires in a dielectric matrix has strongly anisotropic optical properties. For filling ratio f<1/2, the composite medium shows two surface plasmon resonances (SPRs): the transverse and longitudinal SPR with wavelengths lambda_tlambda_l, the longitudinal SPR, the material exhibits Re epsilon_l<0, Re epsilon_t>0, relative to the nanowires axis, enabling the achievement of broadband all-angle negative refraction and superlens imaging. An imaging theory of superlens made of these media is established. High performance systems made with Au, Ag or Al nanowires in nanoporous templates are designed and predicted to work from the infrared up to ultraviolet frequencies.
Comment: 4 pages, 4 figures
Comment: 4 pages, 4 figures