Cloaking an arbitrary object via anomalous localized resonance: the cloak is independent of the object

TL;DR

This paper explores cloaking objects using anomalous localized resonance with negative index materials, demonstrating that cloaking can be achieved independently of the object, and connecting it to superlensing and complementary media.

Contribution

It introduces new cloaking schemes via anomalous localized resonance that are independent of the object, with analysis in 2D and 3D, and links to superlensing and complementary media.

Findings

2D quasistatic cloaking of small objects using annular plasmonic structures

Connection between cloaking and superlensing phenomena

Confirmation that lenses can function as cloaks

Abstract

In this paper, we present various schemes of cloaking an arbitrary objects via anomalous localized resonance and provide their analysis in two and three dimensions. This is a way to cloak an object using negative index materials in which the cloaking device is independent of the object. As a result, we show that in two dimensional quasistatic regime an annular plasmonic structure $-I$ cloaks small but finite size objects near by. We also discuss its connections with superlensing and cloaking using complementary media. In particular, we confirm the possibility that a lens can act like a cloak and conversely. This possibility was raised about a decade ago in the literature.