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arXiv · 0707.3641

Non-Magnetic Cloak without Reflection

Wenshan Cai·Uday K. Chettiar·Alexander V. Kildishev·Graeme W. Milton·Vladimir M. Shalaev
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Abstract

In an electromagnetic cloak based on a transformation approach, reduced sets of material properties are generally favored due to their easier implementation in reality, although a seemingly inevitable drawback of undesired reflection exists in such cloaks. Here we suggest using high-order transformations to create smooth moduli at the outer boundary of the cloak, therefore completely eliminating the detrimental scattering within the limit of geometric optics. We apply this scheme to a non-magnetic cylindrical cloak and demonstrate that the scattered field is reduced substantially in a cloak with optimal quadratic transformation as compared to its linear counterpart.

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Wenshan Cai, Uday K. Chettiar, Alexander V. Kildishev, Graeme W. Milton, Vladimir M. Shalaev. 2007-07-24. Non-Magnetic Cloak without Reflection. https://arxiv.org/abs/0707.3641

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