Physics – Optics
Scientific paper
2007-06-17
Photon. Nanostruct.: Fundam. Applic. 6, 87 (2008)
Physics
Optics
submitted to "Photonics and Nanostructures", Special Issue "PECS VII", Elsevier
Scientific paper
10.1016/j.photonics.2007.07.013
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.
Cummer Steven A.
Pendry John B.
Rahm Marco
Roberts Daniel A.
Schurig David
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