Examination of the Thermal Cloaking Effectiveness with Layered Engineering Materials

The concentrically layered thermal cloaks with isotropic materials could realize the equivalent thermal cloaking effect with Pendry＇s cloak, while the effectiveness is scarcely investigated quantitatively. Here we examine the cloaking effectiveness quantitatively by evaluating the standard deviation...

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Bibliographic Details
Published in:Chinese physics letters 2016-04, Vol.33 (4), p.72-75
Main Author: 胡润 胡锦炎 吴睿康 谢斌 余兴建 罗小兵
Format: Article
Language:English
Subjects:
各向同性
层状
工程
材料检查
标准偏差
热传导率
设计规则
隐身效果
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Summary:The concentrically layered thermal cloaks with isotropic materials could realize the equivalent thermal cloaking effect with Pendry＇s cloak, while the effectiveness is scarcely investigated quantitatively. Here we examine the cloaking effectiveness quantitatively by evaluating the standard deviation of the temperature difference between the simulated plane with the layered thermal cloak and Pendry＇s thermal cloak. The design rules for the isotropic materials in terms of thermal conductivity and layer thickness are presented. The present method could quan- titatively evaluate the cloaking effectiveness, and could open avenues for analyzing the cloaking effect, detecting the （anti-） cloaks, etc.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/4/044401