Nonsingularity in two-dimensional cylindrical invisible cloaks |
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Authors: | Wang Xin-Hu Qu Shao-Bo Xia Song Wang Bin-Ke Xu Zhuo Ma Hu Wang Jia-Fu Gu Chao Wu Xiang Lu Lei and Zhou Hang |
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Institution: | College of Science, Air Force Engineering University, Xi'an 710051, China; Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China |
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Abstract: | This paper reports that a general method of designing
invisible cloaks is using variant constitutive material
parameters to realize the space transformation. A hollow region can
be hidden after this transformation. It was recently shown (Ma H, Qu
S B, Xu Z and Wang J F 2009 \wx{Appl. Phys. Lett.}{94} 103501) that
when the original point moves to the boundary of a cloak, the cloak
can be designed to be open. Based on this theory, we propose
multi-window invisible cloaks which can conceal a group of objects.
Full wave simulations for invisible cloaks with regular and
irregular shapes verified this method. |
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Keywords: | invisible cloaks transformation optics constitutive
material parameters |
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