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Special Issue:
SPECIAL TOPIC — Heat conduction and its related interdisciplinary areas
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| SPECIAL TOPIC—Heat conduction and its related interdisciplinary areas |
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General three-dimensional thermal illusion metamaterials |
| Tianfeng Liu(刘天丰)1,2, Zhaochen Wang(王兆宸)2, Zhan Zhu(朱展)2, and Run Hu(胡润)1,2,† |
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 |
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Abstract 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.
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Received: 28 September 2023
Revised: 23 October 2023
Accepted manuscript online: 04 November 2023
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PACS:
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44.10.+i
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(Heat conduction)
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61.46.-w
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(Structure of nanoscale materials)
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07.20.-n
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(Thermal instruments and apparatus)
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| Fund: 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, and the Science and Technology Program of Hubei Province of China (Grant No. 2021BLB176). |
Corresponding Authors:
Run Hu
E-mail: hurun@hust.edu.cn
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Cite this article:
Tianfeng Liu(刘天丰), Zhaochen Wang(王兆宸), Zhan Zhu(朱展), and Run Hu(胡润) General three-dimensional thermal illusion metamaterials 2024 Chin. Phys. B 33 044401
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