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arXiv 1507.06284physics.opticscond-mat.mes-hall
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GHz谐振超材料上方的能量密度:近场热发射探测的替代方案

Energy density above a resonant metamaterial in the GHz: an alternative to near-field thermal emission detection

Karl Joulain, Jérémie Drevillon, Younès Ezzahri

摘要:

本文提出了一个实验,以方便地检测在微波范围内的辐射传热。根据Pendry十多年前给出的想法[1],我们证明了具有1 cm周期的2微米半径钨线的3D阵列使得低成本材料在2.9 GHz左右的微波范围内表现出表面等离子体。这种加热的材料应表现出远高于环境发射的等离子体频率附近的发射峰。在近场中检测到的信号的分析也应该是分析均匀化理论在到材料的距离是超材料周期的量级时如何应用的工具。在相同的条件下,也可以为非局域介电性质提供一个模型。

英文摘要:

This paper proposes an experiment to easily detect radiative heat transfer in the microwave range. Following an idea given by Pendry more than a decade ago [1], we show that a 3D array of tungsten 2micron radius wires with a 1 cm period makes a low cost material exhibiting a surface plasmon in the microwave range around 2.9 GHz. Such a heated material should exhibit an emission peak near the plasmon frequency well above ambient emission. Analysis of the signal detected in the near-field should also be a tool to analyze how homogenization theory applies when the distance to the material is of the order of the metamaterial period. It could also be give a model to non-local dielectric properties in the same conditions.

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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