%0 Conference Proceedings
%T Quasioptical phonon-cooled NbN hot-electron bolometer mixer at THz frequencies
%A Yagoubov, P.
%A Gol'tsman, G.
%A Voronov, B.
%A Svechnikov, S.
%A Cherednichenko, S.
%A Gershenzon, E.
%A Belitsky, V.
%A Ekström, H.
%A Semenov, A.
%A Gousev, Yu
%A Renk, K.
%S Proc. 7[super:th] Int. Symp. Space Terahertz Technol.
%D 1996
%F Yagoubov_etal1996
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1614), last updated on Wed, 26 May 2021 12:39:05 -0500
%X In our experiments we tested phonon-cooled hot-electron bolometer (HEB) quasioptical mixer based on spiral antenna designed for 0.5-1.2 THz frequency band and fabricated on sapphire, Si-coated sapphire and high resistivity silicon substrates. HEB devices were produced from thin superconducting NbN film 3.5-6 nm thick with the critical temperature of about 11-12 K. For these devices we achieved the receiver noise temperature T R (DSB) = 3000 K in the 500-700 GHz frequency range and an IF bandwidth of 3-4 GHz. Prelimanary measurements at frequencies 1-1.2 THz resulted the receiver noise temperature about 9000 K (DSB).
%K NbN HEB mixers
%U https://www.nrao.edu/meetings/isstt/1996.shtml
%P 303-317