Title :
Heterodyne receivers for high frequency THz astrophysics
Author :
Hubers, Heinz-Wilhelm
Author_Institution :
Inst. of Planetary Res., German Aerosp. Center (DLR), Berlin, Germany
Abstract :
The performance of heterodyne receivers for frequencies beyond 1.4 THz will be reviewed. Emphasis will be on the development of the 4.7-THz frequency channel for the GREAT heterodyne spectrometer on SOFIA. This receiver is based on a phonon-cooled hot-electron bolometric mixer and a quantum-cascade laser as local oscillator.
Keywords :
bolometers; heterodyne detection; quantum cascade lasers; spectrometers; GREAT heterodyne spectrometer; SOFIA; heterodyne receivers; high frequency THz astrophysics; local oscillator; phonon-cooled hot-electron bolometric mixer; quantum-cascade laser; Astronomy; Atmospheric measurements; Local oscillators; Mixers; Quantum cascade lasers; Receivers; Terrestrial atmosphere;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956070
