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2.5-THz heterodyne receiver with quantum cascade laser and hot electron bolometer mixer in a pulse tube cooler.
Richter, Heiko and Semenov, Alexei and Pavlov, Sergey and Hübers, Heinz-Wilhelm and Mahler, Lucas and Tredicucci, Alessandro and Beere, Harvey and Ritchie, D. A. and Ill'in, Konstantin and Siegel, Michael (2008) 2.5-THz heterodyne receiver with quantum cascade laser and hot electron bolometer mixer in a pulse tube cooler. In: 2008 Proceedings 19th International Symposium on Space Terahertz Technology, pp. 161-165. ISSTT 2008 (19. Annual Meeting), 2008-28-04 - 2008-30-04, Groningen, Netherlands.
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Abstract
A 2.5-THz heterodyne receiver has been realized in a pulse tube cooler. This liquid cryogen free system is based on a quantum cascade laser (QCL) acting as local oscillator and a hot electron bolometeric mixer. The double sideband noise temperature of the system is 2000 K and when corrected for optical losses in the signal path it is 800 K. A detailed study of the QCL beam quality yielded a beam propagation factor of 1.1-1.3.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||||||||
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| Title: | 2.5-THz heterodyne receiver with quantum cascade laser and hot electron bolometer mixer in a pulse tube cooler. | ||||||||||||||||||||||
| Authors: |
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| Date: | 2008 | ||||||||||||||||||||||
| Journal or Publication Title: | 2008 Proceedings 19th International Symposium on Space Terahertz Technology | ||||||||||||||||||||||
| Page Range: | pp. 161-165 | ||||||||||||||||||||||
| Editors: |
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| Status: | Published | ||||||||||||||||||||||
| Keywords: | THz, heterodyne receiver | ||||||||||||||||||||||
| Event Title: | ISSTT 2008 (19. Annual Meeting) | ||||||||||||||||||||||
| Event Location: | Groningen, Netherlands | ||||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||||
| Event Dates: | 2008-28-04 - 2008-30-04 | ||||||||||||||||||||||
| Organizer: | SRON, University of Groningen | ||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||||||||
| HGF - Program Themes: | W EO - Erdbeobachtung | ||||||||||||||||||||||
| DLR - Research area: | Space | ||||||||||||||||||||||
| DLR - Program: | W EO - Erdbeobachtung | ||||||||||||||||||||||
| DLR - Research theme (Project): | W - Projekt sicherheitsrelevante Erdbeobachtung (old) | ||||||||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||||||||
| Institutes and Institutions: | Institute of Planetary Research > Terahertz and Infrared Sensors | ||||||||||||||||||||||
| Deposited By: | Dr.rer.nat. Heiko Richter | ||||||||||||||||||||||
| Deposited On: | 05 Jan 2009 | ||||||||||||||||||||||
| Last Modified: | 15 Jan 2010 00:43 |
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