A carpet cloak for heat flux and temperature field

TL;DR

This paper introduces a thermal carpet device based on transformation optics that effectively cloaks a region from external heat flux, with uniform material parameters simplifying fabrication.

Contribution

The paper presents a novel thermal cloaking device with constant material parameters, enabling easier manufacturing and effective heat flux protection from multiple directions.

Findings

Effective cloaking of heat flux from various directions

Material parameters are constant throughout the device

Simplified fabrication process for thermal cloaks

Abstract

Based on transformation optics theory, we present a new carpet device that can be used to thermally protect a region from the invasion of external heat flux. The designed device is termed 'thermal carpet', which provides considerable cloaking effect. The cloaking performance for heat flux originating from different directions are analyzed. Unlike most thermal cloak designs reported in the literature, the material parameters are constant with position throughout the cloak, indicating that only one type of metamaterial composite to fabricate such a carpet is required.