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Near-field radiative heat transfer for structured surfaces

机译:结构化表面的近场辐射热传递

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摘要

We apply an analytical approach for determining the near-field radiative heat transfer between a metallic nanosphere and a planar semi-infinite medium with some given surface structure. This approach is based on a perturbative expansion, and evaluated to first order in the surface profile. With the help of numerical results obtained for some simple model geometries we discuss typical signatures that should be obtainable with a near-field scanning thermal microscope operated in either constant-height or constant-distance mode.
机译:我们采用一种分析方法来确定金属纳米球和具有某些给定表面结构的平面半无限介质之间的近场辐射热传递。该方法基于扰动展开,并在表面轮廓中评估为一阶。在一些简单的模型几何形状的数值结果的帮助下,我们讨论了在恒定高度或恒定距离模式下运行的近场扫描热显微镜应能获得的典型特征。

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