2005/03/19 by A. L. Efros, Alexander L. Efros, Efros, A. L. +4
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Optical and Acousto-Optic Technologies #Photonic Crystals and Applications #Photorefractive and Nonlinear Optics #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0503494
4 pages, 3figures
arxiv created 2005/03/19 · openalex publication_date 2005/03/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is shown that negative electric permittivity and magnetic permeability recently discovered in a photonic crystal in the vicinity of the Gamma-point are properties of propagating modes only. The evanescent modes rather decay than increase in the bulk of the crystal though they may be amplified by surface waves. If surface support such waves, the evanescent waves may improve the image of a thin Veselago lens. It is shown that a ``perfect lens'' contradicts to the wave optics and a criterion of ``superlensing'' is formulated.