Superscatterer: Enhancement of scattering with complementary media

TL;DR

This paper introduces a superscatterer device that uses complementary media and negative refractive materials to significantly enhance electromagnetic scattering, making objects appear larger than their physical size.

Contribution

It presents a novel design of a superscatterer using negative refractive materials and analytical Mie scattering theory, confirmed by numerical simulations.

Findings

Enhanced scattering cross section demonstrated

Analytical and numerical results agree

Device acts as a cylindrical concave mirror for all angles

Abstract

Based on the concept of complementary media, we propose a novel design which can enhance the electromagnetic wave scattering cross section of an object so that it looks like a scatterer bigger than the scale of the device. Such a ``superscatterer'' is realized by coating a negative refractive material shell on a perfect electrical conductor cylinder. The scattering field is analytically obtained by Mie scattering theory, and confirmed by full-wave simulations numerically. Such a device can be regarded as a cylindrical concave mirror for all angles.