Band gap or negative refraction effects?
Condensed Matter
2007-05-23 v1
Abstract
By a rigorous numerical simulation based on the standard multiple scattering theory, we investigate the optical transmission in photonic crystal structures, formed by dielectric cylinders embedded in parallel in a uniform medium. In contrast to previous conjectures, the results indicate that the imaging effect which has been interpreted as a signature of the negative refractive effects is caused by a tunnelling effect in the presence of partial band gaps. There is no need for an all-angle negative refraction effect to understand some peculiar phenomena of photonic crystals.
Cite
@article{arxiv.cond-mat/0310423,
title = {Band gap or negative refraction effects?},
author = {C. -H. Kuo and Z. Ye},
journal= {arXiv preprint arXiv:cond-mat/0310423},
year = {2007}
}