A new strategy to conceal an object from electromagnetic wave

Details A new strategy to conceal an object from electromagnetic wave A new strategy to conceal an object from electromagnetic wave

2008-08-01

arxiv.org/abs/0808.0215v1

Physics

Optics

Scientific paper

A new recipe for concealing objects from detection is suggested. Different with traditional cloak which deflects light around the core of the cloak to make the object inside invisible, our cloak guides the light to penetrate the core of the cloak but without striking some region of the cloak shell - the so called folded region. Full wave analytical calculation shows that this cloak will lead to a scattering enhancement instead of scattering reduction in contrast to the traditional cloak; the scattered field distribution can also be changed as if the scatterer is moved from its original position. Such interesting phenomenon indicates the proposed cloak can be used to disguise the true information of the object, e.g. the position, the size, etc, and further mislead the observer and avoid being detected.

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