A low-noise 810 GHz heterodyne receiver for molecular-line astronomy

A low-noise 810 GHz heterodyne receiver for astronomy is described. The mixer consists of a NbTiN SIS junction, mounted in a half-height rectangular waveguide mixer block. The receiver has been successfully tested on the UK Infrared Telescope, Hawaii, with a DSB system noise temperature of 280 K at...

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Bibliographic Details
Main Authors: Davies, S.R., Ellison, B.N., Price, M.C., Little, L.T., White, G.J., Natale, V., Jackson, B.D., Matheson, D.N.
Format: Conference Proceeding
Language:English
Subjects:
Astronomy
Helium
Mirrors
Optical beams
Optical receivers
Optical surface waves
Physics
Rectangular waveguides
Telescopes
Waveguide junctions
Online Access:Request full text
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Description
Summary:A low-noise 810 GHz heterodyne receiver for astronomy is described. The mixer consists of a NbTiN SIS junction, mounted in a half-height rectangular waveguide mixer block. The receiver has been successfully tested on the UK Infrared Telescope, Hawaii, with a DSB system noise temperature of 280 K at 808 GHz. Observations of several astronomical sources have verified the sensitivity of the instrument.
DOI:10.1109/ICIMW.2004.1422322