Near-field enhancement and imaging in double cylindrical polariton-resonant structures: Enlarging perfect lens
arXiv:physics/0509232 · doi:10.1016/j.physleta.2006.04.072
Abstract
We experimentally demonstrate a prototype of a cylindrical enlarging lens capable of enhancing and restoring evanescent fields. The enabling phenomenon is the resonant excitation of coupled surface modes in a system of two cylindrical arrays of small resonant particles. As was shown in [J. Appl. Phys. 96, 1293 (2004)], this phenomenon in planar arrays can be used in electromagnetic near-field imaging. Here, we use a similar structure in a cylindrically symmetric configuration, which gives us a possibility to obtain an enlarged near-field image.
7 pages, 4 figures