Enhancing the resolution of hyperlens by the compensation of losses without gain media

TL;DR

This paper introduces a loss compensation technique combining hyperlens operation with plasmon injection to significantly enhance resolution, enabling imaging of features as small as one seventh of the wavelength.

Contribution

It proposes a novel method to improve hyperlens resolution by integrating plasmon injection for loss compensation without using gain media.

Findings

Achieved resolution of one seventh of the wavelength.

Enabled imaging of otherwise unresolvable features.

Demonstrated effective loss compensation in hyperlenses.

Abstract

We present a method to improve the resolution of available hyperlenses in the literature. In this method, we combine the operation of hyperlens with the recently proposed plasmon injection scheme for loss compensation in metamaterials. Image of an object, which is otherwise not resolvable by the hyperlens alone, was reconstructed up to the minimum feature size of one seventh of the free-space wavelength.