Active thermal cloak
Thermal cloaking, as an ultimate thermal “illusion” phenomenon, is the result of advanced heat manipulation with thermal metamaterials—heat can be guided around a hidden object smoothly without disturbing the ambient thermal environment. However, all previous thermal metamaterial cloaks were passive...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/103987 http://hdl.handle.net/10220/38798 |
| _version_ | 1826128162739716096 |
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| author | Nguyen, Dang Minh Xu, Hongyi Zhang, Youming Zhang, Baile |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Nguyen, Dang Minh Xu, Hongyi Zhang, Youming Zhang, Baile |
| author_sort | Nguyen, Dang Minh |
| collection | NTU |
| description | Thermal cloaking, as an ultimate thermal “illusion” phenomenon, is the result of advanced heat manipulation with thermal metamaterials—heat can be guided around a hidden object smoothly without disturbing the ambient thermal environment. However, all previous thermal metamaterial cloaks were passive devices, lacking the functionality of switching on/off and the flexibility of changing geometries. In this letter, we report an active thermal cloaking device that is controllable. Different from previous thermal cloaking approaches, this thermal cloak adopts active thermoelectric components to “pump” heat from one side to the other side of the hidden object, in a process controlled by input electric voltages. Our work not only incorporates active components in thermal cloaking but also provides controllable functionality in thermal metamaterials that can be used to construct more flexible thermal devices. |
| first_indexed | 2024-10-01T07:20:25Z |
| format | Journal Article |
| id | ntu-10356/103987 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:20:25Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1039872023-02-28T19:23:15Z Active thermal cloak Nguyen, Dang Minh Xu, Hongyi Zhang, Youming Zhang, Baile School of Physical and Mathematical Sciences Thermal cloaking, as an ultimate thermal “illusion” phenomenon, is the result of advanced heat manipulation with thermal metamaterials—heat can be guided around a hidden object smoothly without disturbing the ambient thermal environment. However, all previous thermal metamaterial cloaks were passive devices, lacking the functionality of switching on/off and the flexibility of changing geometries. In this letter, we report an active thermal cloaking device that is controllable. Different from previous thermal cloaking approaches, this thermal cloak adopts active thermoelectric components to “pump” heat from one side to the other side of the hidden object, in a process controlled by input electric voltages. Our work not only incorporates active components in thermal cloaking but also provides controllable functionality in thermal metamaterials that can be used to construct more flexible thermal devices. Published version 2015-10-13T03:13:50Z 2019-12-06T21:23:59Z 2015-10-13T03:13:50Z 2019-12-06T21:23:59Z 2015 2015 Journal Article Nguyen, D. M., Xu, H., Zhang, Y., & Zhang, B. (2015). Active thermal cloak. Applied Physics Letters, 107(12), 121901-. https://hdl.handle.net/10356/103987 http://hdl.handle.net/10220/38798 10.1063/1.4930989 en Applied Physics Letters © 2015 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The published version is available at: [http://dx.doi.org/10.1063/1.4930989]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | Nguyen, Dang Minh Xu, Hongyi Zhang, Youming Zhang, Baile Active thermal cloak |
| title | Active thermal cloak |
| title_full | Active thermal cloak |
| title_fullStr | Active thermal cloak |
| title_full_unstemmed | Active thermal cloak |
| title_short | Active thermal cloak |
| title_sort | active thermal cloak |
| url | https://hdl.handle.net/10356/103987 http://hdl.handle.net/10220/38798 |
| work_keys_str_mv | AT nguyendangminh activethermalcloak AT xuhongyi activethermalcloak AT zhangyouming activethermalcloak AT zhangbaile activethermalcloak |