PT Unknown
AU Svechnikov, S
   Verevkin, A
   Voronov, B
   Menschikov, E
   Gershenzon, E
   Gol'tsman, G
TI Quasioptical phonon-cooled NbN hot electron bolometer mixers at 0.5-1.1 THz
SE Proc. 9[super:th] Int. Symp. Space Terahertz Technol.
PY 1998
BP 45
EP 51
DE NbN HEB mixers
AB The noise performance of a receiver incorporating spiral antenna coupled NbN phonon-cooled superconducting hot electron bolometric mixer is measured from 450 GHz to 1200 GHz. The mixer element is thin (thickness nm) NbN 1.5 pm wide and 0.2 i.um long film fabricated by lift-off e-beam lithography on high-resistive silicon substrate. The noise of the receiver temperature is 1000 K at 800-900 GHz, 1200 K at 950 GHz, and 1600 K at 1.08 THz. The required (absorbed) local-oscillator power is —20 nW.
ER