Abstract
Conventional studies on the design of a (carpet) thermal cloak are based on the coordinate transformation techniques, which are complicated and hard to realize with natural materials. Here we show another feasible approach to design the carpet thermal cloak through the rotated alternatively stacking materials based on the refraction law of heat flux in analogy to that of light. To make the consequent bending of heat flux parallel to the profile of the cloaking region, three design rules to realize the carpet cloaking effect by such configurations are provided and validated. The boundary condition tolerances of the carpet thermal cloak are examined as well.
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