Extremely thin metamaterial absorbers for subterahertz waves: from fundamentals towards applications in uncooled bolometric sensors

Sergey A. Kuznetsov; Andrey G. Paulish; Alexander V. Gelfand; Mikhail A. Astafiev; Andrey V. Arzhannikov; Victor N. Fedorinin; Manfred K. A. Thumm

doi:10.1117/12.922728

1 May 2012 Extremely thin metamaterial absorbers for subterahertz waves: from fundamentals towards applications in uncooled bolometric sensors

Sergey A. Kuznetsov, Andrey G. Paulish, Alexander V. Gelfand, Mikhail A. Astafiev, Andrey V. Arzhannikov, Victor N. Fedorinin, Manfred K. A. Thumm

Author Affiliations +

Proceedings Volume 8423, Metamaterials VII; 84230S (2012) https://doi.org/10.1117/12.922728
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We present the selected results of theoretical and experimental investigations of high-performance ultra-thin metamaterial-inspired absorbers designed for narrow-band operation at subterahertz frequencies and intended for integration with spectrally-selective bolometric devices. The attainability of values up to 182 for the ratio of the free-space wavelength to the absorber's thickness is experimentally demonstrated, while realizability of even thinner structures is shown. The first prototypes of spectrophotometric and imaging detectors with metamaterial-based radiation-sensitive pixels, utilizing a principle of THz-to-IR conversion, are discussed.

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Sergey A. Kuznetsov, Andrey G. Paulish, Alexander V. Gelfand, Mikhail A. Astafiev, Andrey V. Arzhannikov, Victor N. Fedorinin, and Manfred K. A. Thumm "Extremely thin metamaterial absorbers for subterahertz waves: from fundamentals towards applications in uncooled bolometric sensors", Proc. SPIE 8423, Metamaterials VII, 84230S (1 May 2012); https://doi.org/10.1117/12.922728

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