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arXiv 1703.01320cond-mat.mes-hall
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两涂层球间近场热辐射转移

Near-field thermal radiative transfer between two coated spheres

Braden Czapla, Arvind Narayanaswamy

摘要:

在这项工作中,我们提出了一个表达式的近场热辐射转移之间的两个球与任意数量的涂层。我们数值模拟表明,由于新引入的涂层和核心之间的接口之间的分层球的热传递的频谱表现出新的功能。这些特征包括非共振频率处的宽超普朗克峰和具有极性材料涂层的金属球之间的近场选择性发射。在某些情况下,具有两种不同极性材料的核心和涂层的球体也显示出超过均匀球体的总电导。

英文摘要:

In this work, we present an expression for the near-field thermal radiative transfer between two spheres with an arbitrary numbers of coatings. We numerically demonstrate that the spectrum of heat transfer between layered spheres exhibits novel features due to the newly introduced interfaces between coatings and cores. These features include broad super-Planckian peaks at non-resonant frequencies and near-field selective emission between metallic spheres with polar material coatings. Spheres with cores and coatings of two different polar materials are also shown to exceed the total conductance of homogeneous spheres in some cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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