Subdiffraction-limited imaging based on longitudinal modes in a spatially dispersive slab
Optics
2014-08-26 v2
Abstract
It was proposed that a flat silver layer could be used to form a sub-diffraction limited image when illuminated near its surface plasmon resonance frequency [J. B. Pendry, Phys. Rev. Lett. 86, 3966 (2000)]. In this paper, we study the possibility of obtaining sub diffraction resolution using a different mechanism, with no surface plasmons involved. Instead, by taking into account the non-local response of a thin silver slab, we show that longitudinal modes contribute to the formation of a sub-diffraction limited image in a frequency regime above the plasma frequency. The differences between these two distinct mechanisms are studied and explained.
Cite
@article{arxiv.1404.4337,
title = {Subdiffraction-limited imaging based on longitudinal modes in a spatially dispersive slab},
author = {Avner Yanai and Uriel Levy},
journal= {arXiv preprint arXiv:1404.4337},
year = {2014}
}