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Frontend for a 2.5-THz heterodyne spectrometer without liquid cryogen

Richter, Heiko and Semenov, A. D. and Pavlov, Sergey and Mahler, L. and Tredicucci, A. and Beere, H. E. and Ritchie, D. A. and Il'in, K. and Siegel, M. and Hübers, Heinz-Wilhelm (2011) Frontend for a 2.5-THz heterodyne spectrometer without liquid cryogen. IRMMW 2011, 3 Oct - 7 Nov 2011, Houston, Texas, USA.

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Abstract

As part of a study for a second generation heterodyne spectrometer on SOFIA we are developing a 2.5-THz frontend which is implemented in a pulse-tube cooler . It consists of a quantum-cascade laser as local oscillator and a phonon-cooled NbN hot electron bolometric mixer. Frequency stabilization to below 300 kHz full width at half maximum is achieved by locking to a molecular absorption line. We will present the design and performance of the frontend and discuss the prospects for an application on board of SOFIA.

Document Type:Conference or Workshop Item (Speech)
Title:Frontend for a 2.5-THz heterodyne spectrometer without liquid cryogen
Authors:
AuthorsInstitution or Email of Authors
Richter, HeikoHeiko.Richter@dlr.de
Semenov, A. D.alexei.semenov@dlr.de
Pavlov, Sergeysergeij.pavlov@dlr.de
Mahler, L.NEST-INFM
Tredicucci, A.NEST-INFM
Beere, H. E.University Cambridge
Ritchie, D. A.Universtiy Cambridge
Il'in, K.KIT Karlsruhe
Siegel, M.KIT Karsruhe
Hübers, Heinz-WilhelmTU Berlin, Heinz-Wilhelm.Huebers@dlr.de
Date:7 October 2011
Status:Published
Keywords:SOFIA, pulse tube cooler, QCL, HEB
Event Title:IRMMW 2011
Event Location:Houston, Texas, USA
Event Type:national Conference
Event Dates:3 Oct - 7 Nov 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - FAMOUS 2 (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Deposited By: Dr.rer.nat. Heiko Richter
Deposited On:14 Nov 2011 12:06
Last Modified:12 Dec 2013 21:24

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