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Illusion optics: Optically transforming the nature and the location of electromagnetic emissions

Abstract : Complex electromagnetic structures can be designed by using the powerful concept of transformation electromagnetics. In this study, we define a spatial coordinate transformation that shows the possibility of designing a device capable of producing an illusion on an antenna radiation pattern. Indeed, by compressing the space containing a radiating element, we show that it is able to change the radiation pattern and to make the radiation location appear outside the latter space. Both continuous and discretized models with calculated electromagnetic parameter values are presented. A reduction of the electromagnetic material parameters is also proposed for a possible physical fabrication of the device with achievable values of permittivity and permeability that can be obtained from existing well-known metamaterials. Following that, the design of the proposed antenna using a layered metamaterial is presented. Full wave numerical simulations using Finite Element Method are performed to demonstrate the performances of such a device. (C) 2015 AIP Publishing LLC.
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https://hal-univ-paris10.archives-ouvertes.fr/hal-01422959
Contributor : Shah Nawaz Burokur <>
Submitted on : Tuesday, December 27, 2016 - 9:39:57 PM
Last modification on : Wednesday, September 16, 2020 - 5:00:15 PM

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Jianjia Yi, Paul-Henri Tichit, Shah Nawaz Burokur, Andre Lustrac. Illusion optics: Optically transforming the nature and the location of electromagnetic emissions. Journal of Applied Physics, American Institute of Physics, 2015, 117 (8), ⟨10.1063/1.4913596⟩. ⟨hal-01422959⟩

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