Invisibility cloaks—to manipulate light with materials and eliminate scattering of objects

Abstract

Invisibility cloaks, an advanced stealth technology that completely eliminates the scattering of an object in parts of the electromagnetic (EM) spectrum is proposed by scientists in theory with some verification experiments. The complex medium parameters for cloaks with arbitrary geometries can be analytically obtained, which highly improve the flexibility for cloak design. The concept of the invisibility cloaks may lead to new and unexpected developments in stealth technology.