@Article{Kawamura_etal2001,
author="Kawamura, J.
and Tong, C-Y E.
and Blundell, R.
and Papa, D. C.
and Hunter, T. R.
and Patt, F.
and Gol{\textquoteright}tsman, G.
and Gershenzon, E.",
title="Terahertz-frequency waveguide NbN hot-electron bolometer mixer",
journal="IEEE Trans. Appl. Supercond.",
year="2001",
volume="11",
number="1",
pages="952--954",
optkeywords="NbN HEB mixers",
abstract="We have developed a low-noise waveguide heterodyne receiver for operation near 1 THz using phonon-cooled NbN hot-electron bolometers. The mixer elements are submicron-sized microbridges of 4 nm-thick NbN film fabricated on a quartz substrate. Operating at a bath temperature of 4.2 K, the double-sideband receiver noise temperature is 760 K at 1.02 THz and 1100 K at 1.26 THz. The local oscillator is provided by solid-state sources, and power measured at the source is less than 1 /spl mu/W. The intermediate frequency bandwidth exceeds 2 GHz. The receiver was used to make the first ground-based heterodyne detection of a celestial spectroscopic line above 1 THz.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1546), last updated on Mon, 24 May 2021 14:01:46 -0500",
issn="1558-2515",
doi="10.1109/77.919505",
opturl="https://doi.org/10.1109/77.919505"
}