Radiative metamaterials based on effective-medium theory

TL;DR

This paper reviews recent developments in radiative thermal metamaterials based on effective-medium theory, emphasizing their potential applications and future research directions in high-temperature thermal management.

Contribution

It provides a comprehensive overview of radiative thermal metamaterials using effective-medium theory, highlighting new insights and future research pathways.

Findings

Advancements in radiative thermal metamaterials

Potential applications in high-temperature regimes

Future research directions from a microscopic perspective

Abstract

Thermal metamaterials have made significant advancements in the past few decades. However, the concept of thermal metamaterials is primarily rooted in the thermal conduction mechanism, which has consequently restricted their application scope. It is imperative to consider thermal radiation, another crucial thermal transport mechanism, particularly in high-temperature regimes, when designing thermal devices. In this review paper, we present the advancements in this area, with a specific focus on research conducted using the effective-medium theory. Additionally, we explore the potential applications of radiative thermal metamaterials and discuss prospective research directions from a microscopic perspective for future investigations.