@Article{Huebers_etal2001,
author="H{\"u}bers, H-W
and Schubert, J.
and Krabbe, A.
and Birk, M.
and Wagner, G.
and Semenov, A.
and Gol{\textquoteright}tsman, G.
and Voronov, B.
and Gershenzon, E.",
title="Parylene anti-reflection coating of a quasi-optical hot-electron-bolometric mixer at terahertz frequencies",
journal="Infrared Physics {\&} Technology",
year="2001",
volume="42",
number="1",
pages="41--47",
optkeywords="NbN HEB mixers; anti-reflection coating",
abstract="Parylene C was investigated as anti-reflection coating for silicon at terahertz frequencies. Measurements with a Fourier-transform spectrometer show that the transmittance of pure silicon can be improved by about 30{\%} when applying a layer of Parylene C with a quarter wavelength optical thickness. The 10{\%} bandwidth of this coating extends from 1.5 to 3 THz for a center frequency of 2.3--2.5 THz, where the transmittance is constant. Heterodyne measurements demonstrate that the noise temperature of a hot-electron-bolometric mixer can be reduced significantly by coating the silicon lens of the hybrid antenna with a quarter wavelength Parylene C layer. Compared to the same mixer with an uncoated lens the improvement is about 30{\%} at a frequency of 2.5 THz.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1548), last updated on Mon, 24 May 2021 14:16:35 -0500",
issn="1350-4495",
doi="10.1016/S1350-4495(00)00057-8",
opturl="https://linkinghub.elsevier.com/retrieve/pii/S1350449500000578",
opturl="https://doi.org/10.1016/S1350-4495(00)00057-8"
}