Thermal invisibility based on scattering cancellation and mantle cloaking.
We theoretically and numerically analyze thermal invisibility based on the concept of scattering cancellation and mantle cloaking. We show that a small object can be made completely invisible to heat diffusion waves, by tailoring the heat conductivity of the spherical shell enclosing the object. This means that the thermal scattering from the object is suppressed, and the heat flow outside the object and the cloak made of these spherical shells behaves as if the object is not present. Thermal invisibility may open new vistas in hiding hot spots in infrared thermography, military furtivity, and electronics heating reduction.
Division of Computer, Electrical, and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
M
M
Farhat
Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, U.S.A.
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PY
Chen
Division of Computer, Electrical, and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
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H
Bagci
Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, Campus universitaire de Saint-Jérôme, 13013 Marseille, France.
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C
Amra
Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, Campus universitaire de Saint-Jérôme, 13013 Marseille, France.
S
S
Guenneau
Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, 78712, U.S.A.
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Alù