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arXiv · 1507.06284

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

Karl Joulain·Jérémie Drevillon·Younès Ezzahri
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Abstract

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.

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Karl Joulain, Jérémie Drevillon, Younès Ezzahri. 2015-07-22. Energy density above a resonant metamaterial in the GHz: an alternative to near-field thermal emission detection. https://doi.org/10.1615/ichmt.2013.intsympradtransf.240

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