A complementary media invisibility cloak that can cloak objects at a distance outside the cloaking shell

TL;DR

This paper introduces a novel invisibility cloak based on complementary media that can hide objects outside the cloaking shell at specific frequencies, verified through simulations.

Contribution

It presents a new design of a distance-based cloaking device using negative index materials and an anti-object concept, expanding cloaking capabilities beyond the shell.

Findings

Successful simulation of cloaking effect in 2D

Cloak operates at a finite frequency

Object outside the shell remains unblinded

Abstract

Based on the concept of complementary media, we propose an invisibility cloak operating at a finite frequency that can cloak an object with a pre-specified shape and size within a certain distance outside the shell. The cloak comprises of a dielectric core, and an "anti-object" embedded inside a negative index shell. The cloaked object is not blinded by the cloaking shell since it lies outside the cloak. Full-wave simulations in two dimensions have been performed to verify the cloaking effect.