Cylindrical superlens by a coordinate transformation
2008 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 78, no 12, 125113- p.Article in journal (Refereed) Published
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 noninvasive electromagnetic probing.
Place, publisher, year, edition, pages
2008. Vol. 78, no 12, 125113- p.
optical hyperlens, negative-index, metamaterials, refraction
IdentifiersURN: urn:nbn:se:kth:diva-17861DOI: 10.1103/PhysRevB.78.125113ISI: 000259691500030ScopusID: 2-s2.0-54049102411OAI: oai:DiVA.org:kth-17861DiVA: diva2:335906
FunderSwedish Research Council
QC 201005252010-08-052010-08-052011-11-30Bibliographically approved