@Article{Khosropanah_etal2007,
author="Khosropanah, P.
and Gao, J. R.
and Laauwen, W. M.
and Hajenius, M.
and Klapwijk, T. M.",
title="Low noise NbN hot electron bolometer mixer at 4.3  THz",
journal="Appl. Phys. Lett.",
year="2007",
volume="91",
pages="221111 (1 to 3)",
optkeywords="NbN HEB mixers; NbN; contacts cleaning",
abstract="We have studied the sensitivity of a superconducting NbN hot electron bolometer mixer integrated with a spiral antenna at 4.3  THz. Using hot/cold blackbody loads and a beam splitter all in vacuum, we measured a double sideband receiver noise temperature of 1300  K at the optimum local oscillator (LO) power of 330  nW, which is about 12 times the quantum noise (hnu/2kB). Our result indicates that there is no sign of degradation of the mixing process at the superterahertz frequencies. Moreover, a measurement method is introduced which allows us for an accurate determination of the sensitivity despite LO power fluctuations.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=584), last updated on Tue, 25 May 2021 21:54:12 -0500"
}