Optical gain removes absorption and increases resolution in a near-field lens
Condensed Matter
2009-11-07 v1 Optics
Abstract
A recent paper showed how to construct a lens that focuses near field radiation and hence produce resolution unlimited by wavelength. The prescription requires lossless materials with negative refractive index: finite loss cuts off the finer details of the image. In this paper we suggest compensating for losses by introducing optical gain media into the lens design. Calculations demonstrate a dramatic improvement in performance for a silver/gain composite medium at optical frequencies.
Cite
@article{arxiv.cond-mat/0206566,
title = {Optical gain removes absorption and increases resolution in a near-field lens},
author = {S. Anantha Ramakrishna and J. B. Pendry},
journal= {arXiv preprint arXiv:cond-mat/0206566},
year = {2009}
}
Comments
RevTeX4, 4 pages