Abstract
Transformation-optics devices of arbitrary shapes usually result in material parameters inside the device that feature level sets of different shapes. Consequently, these devices cannot easily be implemented using a layered architecture and thus are, generally, more difficult to realize in practice. We present a method of designing two-dimensional transformation-optics devices of arbitrary shapes characterized by material parameters of same-level sets, thus suitable to be implemented through concentric layers, each layer being made of a single type of material or metamaterial. Remarkably, we show that transformations leading to such designs are obtained from solutions to the well-known eikonal equation. This approach allows fabrication techniques developed for cylindrical designs of circular cross section to be directly applied to devices of other shapes.
- Received 15 July 2010
DOI:https://doi.org/10.1103/PhysRevA.82.033837
©2010 American Physical Society
Synopsis
Transformation optics by the slice
Published 22 October 2010
A general approach works toward bringing the magical ideas of transformation optics closer to practical use.
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