A Radial-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks - Physics > Classical PhysicsReport as inadecuate




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Abstract: A radial-dependent dispersive finite-difference time-domain FDTD method isproposed to simulate electromagnetic cloaking devices. The Drude dispersionmodel is applied to model the electromagnetic characteristics of the cloakingmedium. Both lossless and lossy cloaking materials are examined and theiroperating bandwidth is also investigated. It is demonstrated that the perfect-invisibility- from electromagnetic cloaks is only available for losslessmetamaterials and within an extremely narrow frequency band.



Author: Christos Argyropoulos, Yan Zhao, Yang Hao

Source: https://arxiv.org/







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