TY - CONF AU - Huebers, H-W AU - Schubert, J. AU - Semenov, A. AU - Gol’tsman, G. N. AU - Voronov, B. M. AU - Gershenzon, E. M. AU - Schwaab, G. W. A2 - Terahertz Spectroscopy and Applications II ED - Chamberlain, J. M. PY - 1999 DA - 1999// TI - NbN phonon-cooled hot-electron bolometer as a mixer for THz heterodyne receivers T2 - Proc. SPIE BT - Proc. SPIE SP - 410 EP - 416 VL - 3828 PB - Spie KW - NbN HEB mixers AB - We have investigated a phonon-cooled NbN hot electron bolometric (HEB) mixer in the frequency range from 0.7 THz to 5.2 THz. The device was a 3.5 nm thin film with an in- plane dimension of 1.7 X 0.2 micrometers [super:2] integrated in a complementary logarithmic spiral antenna. The measured DSB receiver noise temperatures are 1500 K, 2200 K, 2600 K, 2900 K, 4000 K, 5600 K and 8800 K. The sensitivity fluctuation, the long term stability, and the antenna pattern were measured and the suitability of the mixer for a practical heterodyne receiver is discussed. UR - https://doi.org/10.1117/12.361065 DO - 10.1117/12.361065 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1477), last updated on Mon, 17 May 2021 20:58:01 -0500 ID - Huebers_etal1999 ER -