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arXiv · 1604.03780

A Broadband Micro-machined Far-Infrared Absorber

Edward J. Wollack·Aaron M. Datesman·Christine A. Jhabvala·Kevin H. Miller·Manuel A. Quijada
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Abstract

The experimental investigation of a broadband far-infrared meta-material absorber is described. The observed absorptance is $>\,0.95$ from ${\rm 1-20\,THz}$ (${\rm 300-15\,μm}$) over a temperature range spanning ${\rm 5-300\,K}$. The meta-material, realized from an array of tapers ${\rm \approx 100\,μm}$ in length, is largely insensitive to the detailed geometry of these elements and is cryogenically compatible with silicon-based micro-machined technologies. The electromagnetic response is in general agreement with a physically motivated transmission line model.

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Edward J. Wollack, Aaron M. Datesman, Christine A. Jhabvala, Kevin H. Miller, Manuel A. Quijada. 2016-05-02. A Broadband Micro-machined Far-Infrared Absorber. https://doi.org/10.1063/1.4947513

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