2013/07/08 by Tiancheng Han, Xue Bai, Han, Tiancheng +7
Engineering · Materials Science · #Advanced Antenna and Metasurface Technologies #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Metamaterials and Metasurfaces Applications #Thermal Radiation and Cooling Technologies
paper · pdf · doi:10.48550/arxiv.1307.2507
openalex publication_date 2013/07/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Invisibility has attracted intensive research in various communities, e.g., optics, electromagnetics, acoustics, thermodynamics, etc. However, the most of them have only been experimentally achieved by virtue of simplified approaches due to their inhomogeneous and extreme parameters imposed by transformation-optic method, and usually require challenging realization with metamaterials. In this paper, we demonstrate an advanced bilayer thermal cloak with naturally available materials first time. This scheme, directly from thermal conduction equation, has been validated as an exact cloak rather than a reduced one, and we experimentally confirmed its perfect performance (heat-front maintenance and heat protection) in an actual setup. The proposed scheme may open a new avenue to control the diffusive heat flow in ways inconceivable with phonons.