Cylindrical Superlens by a Coordinate Transformation
Abstract
Cylinder-shaped perfect lens deduced from the coordinate transformation method is proposed. The previously reported perfect slab lens is noticed to be a limiting form of the cylindrical lens when the inner radius approaches infinity with respect to the lens thickness. Connaturality between a cylindrical lens and a slab lens is affirmed by comparing their eigenfield transfer functions. We numerically confirm the subwavelength focusing capability of such a cylindrical lens with consideration of material imperfection. Compared to a slab lens, a cylindrical lens has several advantages, including finiteness in cross-section, and ability in lensing with magnification or demagnification. Immediate applications of such a cylindrical lens can be in high-resolution imaging and lithography technologies. In addition, its invisibility property suggests that it may be valuable for non-invasive electromagnetic probing.
Cite
@article{arxiv.0804.2850,
title = {Cylindrical Superlens by a Coordinate Transformation},
author = {Min Yan and Wei Yan and Min Qiu},
journal= {arXiv preprint arXiv:0804.2850},
year = {2008}
}
Comments
Minor changes to conform with the published version