PT Journal
AU Meledin, DV
   Marrone, DP
   Tong, CE
   Gibson, H
   Blundell, R
   Paine, SN
   Papa, DC
   Smith, M
   Hunter, TR
   Battat, J
   Voronov, B
   Gol'tsman, G
TI A 1-THz superconducting hot-electron-bolometer receiver for astronomical observations
SO IEEE Trans. Microwave Theory Techn.
JI IEEE Trans. Microwave Theory Techn.
PY 2004
BP 2338
EP 2343
VL 52
IS 10
DI 10.1109/TMTT.2004.835979
DE NbN HEB mixer; applications
AB In this paper, we describe a superconducting hot-electron-bolometer mixer receiver developed to operate in atmospheric windows between 800-1300 GHz. The receiver uses a waveguide mixer element made of 3-4-nm-thick NbN film deposited over crystalline quartz. This mixer yields double-sideband receiver noise temperatures of 1000 K at around 1.0 THz, and 1600 K at 1.26 THz, at an IF of 3.0 GHz. The receiver was successfully tested in the laboratory using a gas cell as a spectral line test source. It is now in use on the Smithsonian Astrophysical Observatory terahertz test telescope in northern Chile.
ER