General three-dimensional thermal illusion metamaterials  

作　　者：刘天丰 王兆宸 朱展 胡润 Tianfeng Liu;Zhaochen Wang;Zhan Zhu;Run Hu(China-EU Institute for Clean and Renewable Energy,Huazhong University of Science and Technology,Wuhan 430074,China;School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]China-EU Institute for Clean and Renewable Energy,Huazhong University of Science and Technology,Wuhan 430074,China [2]School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Chinese Physics B》2024年第4期41-47,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos.52211540005 and 52076087);the Natural Science Foundation of Hubei Province of China (Grant No.2023AFA072);the Open Project Program of Wuhan National Laboratory for Optoelectronics (Grant No.2021WNLOKF004);the Wuhan Knowledge Innovation Shuguang Program;the Science and Technology Program of Hubei Province of China (Grant No.2021BLB176)。

摘　　要：Thermal illusion aims to create fake thermal signals or hide the thermal target from the background thermal field to mislead infrared observers,and illusion thermotics was proposed to regulate heat flux with artificially structured metamaterials for thermal illusion.Most theoretical and experimental works on illusion thermotics focus on two-dimensional materials,while heat transfer in real three-dimensional(3D)objects remains elusive,so the general 3D illusion thermotics is urgently demanded.In this study,we propose a general method to design 3D thermal illusion metamaterials with varying illusions at different sizes and positions.To validate the generality of the 3D method for thermal illusion metamaterials,we realize thermal functionalities of thermal shifting,splitting,trapping,amplifying and compressing.In addition,we propose a special way to simplify the design method under the condition that the size of illusion target is equal to the size of original heat source.The 3D thermal illusion metamaterial paves a general way for illusion thermotics and triggers the exploration of illusion metamaterials for more functionalities and applications.

关 键 词：thermal illusion thermal metamaterials transformation thermotics 

分 类 号：O43[机械工程—光学工程]