Demonstration of a Metamaterial Electromagnetic Cloak at Microwave Frequencies
D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, D. R. Smith
TL;DR
This paper demonstrates a metamaterial-based electromagnetic cloak at microwave frequencies, utilizing coordinate transformations to control electromagnetic fields and achieve cloaking effects.
Contribution
It introduces a practical design for an electromagnetic cloak using metamaterials based on space-time transformation techniques.
Findings
Successful experimental demonstration at microwave frequencies
Effective cloaking achieved with designed metamaterials
Provides a complete theoretical framework for electromagnetic cloaking
Abstract
Combining the tools for transforming space-time developed for General Relativity with the capabilities of artificially structured metamaterials, an entirely new means of controlling electromagnetic fields has emerged. Here, we utilize a coordinate transformation in which a hole is opened up in space. The transformation provides a complete prescription for an electromagnetic cloak which, although complex, can be readily constructed with metamaterials
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