Title :
Progress towards a 2.5-THz solid state heterodyne receiver with quantum cascade laser and hot electron bolometric mixer
Author :
Hübers, Heinz-Wilhelm ; Richter, Heiko ; Semenov, Alexei D. ; Pavlov, Sergey G. ; Mahler, Lukas ; Tredicucci, Alessandro ; Beere, Harvey E. ; Ritchie, David A. ; Il´in, Konstantin ; Siegel, Michael
Author_Institution :
Inst. of Planetary Res., German Aerosp. Center (DLR), Berlin
Abstract :
We report on progress towards a solid state 2.5-THz heterodyne receiver. The front-end of the receiver is integrated in a pulse tube cooler. It consists of a quantum cascade laser (QCL) as local oscillator and a phonon-cooled NbN hot electron bolometric mixer. The QCL is mounted on the first stage of the PTC and operates at a temperature of about 45 K while the HEB is mounted on the second stage of the PTC (temperature ~5 K). Design and performance of the receiver will be reported.
Keywords :
astronomical instruments; bolometers; heterodyne detection; hot carriers; quantum cascade lasers; radiotelescopes; submillimetre astronomy; submillimetre wave mixers; submillimetre wave receivers; PTC; QCL; astronomy research; frequency 2.5 THz; phonon-cooled hot electron bolometric mixer; planetary research; pulse tube cooler; quantum cascade laser; solid state heterodyne receiver; Electrons; Local oscillators; Optical mixing; Optical pumping; Optical receivers; Optical resonators; Quantum cascade lasers; Solid state circuits; Spectroscopy; Temperature;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665427
