利用扇形结构实现电场和温度场的同时集中
Concentrating Electric and Thermal Fields Simultaneously Using Fan-shaped Structure
摘要：
近年来，变换光学和超材料因其迷人的现象和潜在的应用而受到人们的广泛关注。集中器是其中最具代表性的一种，但其局限于单一的物理域。在这里，我们提出并给出了实验证明的双功能集中器，可以集中到一个给定的区域，同时保持外部场不失真的电场和热场。为了实现这一目标，提出了由两种天然材料制成的交替楔形体组成的扇形结构。仿真结果与实验结果吻合较好，验证了该方案的可行性.
英文摘要：
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.
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