Concentrating Electric and Thermal Fields Simultaneously Using Fan-shaped Structure

TL;DR

This paper introduces a fan-shaped metamaterial structure that simultaneously concentrates electric and thermal fields into a specific region without disturbing external fields, demonstrated through simulation and experiments.

Contribution

It presents a novel bifunctional concentrator design using natural materials, enabling simultaneous control of electric and thermal fields.

Findings

Successful simulation and experimental validation

Effective concentration of electric and thermal fields

External field undistorted by the concentrator

Abstract

Recently, considerable attention has been focused on the transformation optics and metamaterial due to their fascinating phenomena and potential applications. Concentrator is one of the most representative ones, which however is limited in single physical domain. Here we propose and give the experimental demonstration of bifunctional concentrator that can concentrate electric and thermal fields into a given region simultaneously while keeping the external fields undistorted. Fan-shaped structure composed of alternating wedges made of two kinds of natural materials is proposed to achieve this goal. The simulation and experimental results show good agreement, thereby confirming the feasibility of our scheme.