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Published on: August 28, 2016
Degradation of cloaking by two closely neighboring cloaks
1Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Abstract:
Cloaking can prevent a scattering object from detection by electromagnetic waves as it can significantly reduce the scattering cross section of the object. In this work we show that when two cloaks are placed in close neighborhood, the interaction will greatly enhance the perturbation of near field and significantly increase the scattering cross section compared with a single cloak. This means that the cloaking functionality may strongly degrade when two or more cloaks come close to each other. This offers a route to break down electromagnetic cloaking.
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