Abstract

A $\mathrm{Ag}∕\mathrm{Si}{\mathrm{O}}_2$ multilayer imaging structure is shown to have subwavelength performance. Loss is the major limitation, and selection of low-loss materials and suitable operating wavelengths has a significant impact on performance. The influence of the variables is presented, and vortices are shown to exist.

© 2006 Optical Society of America

High-optical-throughput individual nanoscale aperture in a multilayered metallic film

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