Far-field image of Veselago lens
Materials Science
2007-05-23 v1 Other Condensed Matter
Abstract
It is shown that perfect imaging of a point source both in near- and far-field regions contradicts electrodynamics although ``superlensing'' is impossible only in the far-field region. These general statements are illustrated by detailed study of evanescent wave propagation in a photonic crystal that is known to be a left-handed medium. An analytical expression for the intensity distribution near the far-field focus is obtained. This distribution contains some novel features and establishes a new ``diffraction limit'' for flat lenses. It is generalized for multiple sources located at different points. The distribution is in very good agreement with computer simulation.
Keywords
Cite
@article{arxiv.cond-mat/0507090,
title = {Far-field image of Veselago lens},
author = {C. Y. Li and J. M. Holt and A. L. Efros},
journal= {arXiv preprint arXiv:cond-mat/0507090},
year = {2007}
}
Comments
19 pages, 12 figures