Moving Targets Virtually Via Composite Optical Transformation

TL;DR

This paper introduces a novel optical illusion device that can virtually relocate an object's image using positive-permittivity metamaterials, offering a practical alternative to previous negative-permittivity cloaks.

Contribution

The paper presents a new composite optical transformation for illusion devices that shift object images without requiring negative-permittivity materials, enabling easier realization with artificial metamaterials.

Findings

The illusion device can move an object's image to a different location virtually.

It is constructed using positive-permittivity and permeability materials.

The design differs from previous negative-permittivity cloaks, simplifying fabrication.

Abstract

We propose a composite optical transformation to design an illusion device which can move the image of a target from one place to another place. Enclosed by such an illusion device, an arbitrary object located at one place appears to be at another place virtually. Different from the published shifted-position cloak which is composed of the left-handed materials with simultaneously negative permittivity and permeability, the illusion device proposed in this letter has positive permittivity and permeability. Hence proposed illusion device could be realized by artificial metamaterials.