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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)
Title:2.5-THz heterodyne receiver with quantum cascade laser and hot electron bolometer mixer in a pulse tube cooler.
Authors:
AuthorsInstitution or Email of Authors
Richter, HeikoUNSPECIFIED
Semenov, AlexeiUNSPECIFIED
Pavlov, SergeyUNSPECIFIED
Hübers, Heinz-WilhelmUNSPECIFIED
Mahler, LucasNEST CNR-INFM
Tredicucci, AlessandroScuola Normale Superiore
Beere, HarveyUniversity of Cambridge
Ritchie, D. A.University of Cambridge
Ill'in, KonstantinUniversität Karlsruhe
Siegel, MichaelUniversität Karlsruhe
Date:2008
Journal or Publication Title:2008 Proceedings 19th International Symposium on Space Terahertz Technology
Page Range:pp. 161-165
Editors:
EditorsEmail
Wild, WolfgangUNSPECIFIED
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 (old)
HGF - Program:Space (old)
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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