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. Thi...

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Bibliographic Details
Published in:Scientific reports 2015-04, Vol.5 (1), p.9876-9876, Article 9876
Main Authors: Farhat, M., Chen, P.-Y., Bagci, H., Amra, C., Guenneau, S., Alù, A.
Format: Article
Language:English
Subjects:
639/766/25
639/766/530/951
Earth mantle
Electromagnetic fields
Heat conductivity
Heat flow
Hot spots (geology)
Humanities and Social Sciences
Mechanics
multidisciplinary
Physics
Science
Thermics
Thermography
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Summary: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.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep09876