Design of electromagnetic cloaks and concentrators using form-invariant coordinate transformations of Maxwell’s equations

By Marco Rahm, David Schurig, D. A. Roberts, S. Cummer, David R. Smith, John B. Pendry. 2007

774 citations recorded by the source corpus.

The technique of applying form-invariant, spatial coordinate transformations of Maxwell’s equations can facilitate the design of structures with unique electromagnetic or optical functionality. Here, we illustrate the transformation-optical approach in the designs of a square electromagnetic cloak and an omni-directional electromagnetic field concentrator. The transformation equations are described and the functionality of the devices is numerically confirmed by two-dimensional finite element simulations. The two devices presented demonstrate that the transformation optic approach leads to the specification of complex, anisotropic and inhomogeneous materials with well directed and distinct electromagnetic behavior.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/6b2b947090a2d0bf185d1feefdc2d7e9b53c1f53

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Transformation Electromagnetics: An Overview of the Theory and Applications (2010, methodology): “They included a two-dimensional field-rotating device [47], a cir cular field concentrator [ 36 ], and an ideal absorbing medium for use in efficient numerical solutions of open-boundary problems [48].”
Transformation optics and metamaterials. (2010, background): “Light-guiding and light-bending capabilities can give rise to conceptual devices such as field concentrator”