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arXiv · 0906.1544

Active Exterior Cloaking

Fernando Guevara Vasquez·Graeme W. Milton·Daniel Onofrei
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Abstract

A new method of cloaking is presented. For two-dimensional quasistatics it is proven how a single active exterior cloaking device can be used to shield an object from surrounding fields, yet produce very small scattered fields. The problem is reduced to finding a polynomial which is approximately one within one disk and zero within a second disk, and such a polynomial is constructed. For the two-dimensional Helmholtz equation, it is numerically shown that three active exterior devices placed around the object suffice to produce very good cloaking.

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BibTeXRIS

Fernando Guevara Vasquez, Graeme W. Milton, Daniel Onofrei. 2009-06-08. Active Exterior Cloaking. https://doi.org/10.1103/physrevlett.103.073901

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