TY  - CONF
AU  - Huebers, H-W
AU  - Semenov, A.
AU  - Schubert, J.
AU  - Gol’tsman, G. N.
AU  - Voronov, B. M.
AU  - Gershenzon, E. M.
AU  - Krabbe, A.
AU  - Roeser, H-P
A2  - Airborne Telescope Systems
ED  - Melugin, R. K.
ED  - Roeser, H-P
PY  - 2000
DA  - 2000//
TI  - NbN hot-electron bolometer as THz mixer for SOFIA
T2  - Proc. SPIE
BT  - Proc. SPIE
SP  - 195
EP  - 202
VL  - 4014
PB  - SPIE
KW  - NbN HEB mixers
KW  - airborne
KW  - stratospheric observatory
KW  - SOFIA
AB  - Heterodyne receivers for applications in astronomy need quantum limited sensitivity. We have investigated phonon- cooled NbN hot electron bolometric mixers in the frequency range from 0.7 THz to 5.2 THz. The devices were 3.5 nm thin films with an in-plane dimension of 1.7 X 0.2 micrometers [super:2] integrated in a complementary logarithmic spiral antenna. The best measured DSB receiver noise temperatures are 1300 K (0.7 THz), 2000 K (1.4 THz), 2100 K (1.6 THz), 2600 K (2.5 THz), 4000 K (3.1 THz), 5600 K (4.3 THz), and 8800 K (5.2 THz). The sensitivity fluctuation, the long term stability, and the antenna pattern were measured. The results demonstrate that this mixer is very well suited for GREAT, the German heterodyne receiver for SOFIA.
UR  - https://doi.org/10.1117/12.389097
DO  - 10.1117/12.389097
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1554), last updated on Tue, 25 May 2021 17:45:32 -0500
ID  - Huebers_etal2000
ER  -