TY  - CONF
AU  - Kawamura, J.
AU  - Blundell, R.
AU  - Tong, C-Y E.
AU  - Golts'man, G.
AU  - Gershenzon, E.
AU  - Voronov B.
PY  - 1996
DA  - 1996//
TI  - Superconductive NbN hot-electron bolometric mixer performance at 250 GHz
T2  - Proc. 7[super:th] Int. Symp. Space Terahertz Technol.
BT  - Proc. 7[super:th] Int. Symp. Space Terahertz Technol.
SP  - 331
EP  - 336
KW  - NbN HEB mixers
AB  - Thin film NbN (<40 A) strips are used as waveguide mixer elements. The electron cooling mechanism for the geometry is the electron-phonon interaction. We report a receiver noise temperature of 750 K at 244 GHz, with / IF = 1.5 GHz, Af= 500 MHz, and Tphysical = 4 K. The instantaneous bandwidth for this mixer is 1.6 GHz. The local oscillator (LO) power is 0.5 1.tW with 3 dB-uncertainty. The mixer is linear to 1 dB up to an input power level 6 dB below the LO power. We report the first detection of a molecular line emission using this class of mixer, and that the receiver noise temperature determined from Y-factor measurements reflects the true heterodyne sensitivity.
UR  - https://www.nrao.edu/meetings/isstt/1996.shtml
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=945), last updated on Thu, 15 Jul 2021 00:36:26 -0500
ID  - Kawamura_etal1996
ER  -