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Compact THz source based on QCLs for spectroscopic and imaging applications

Richter, Heiko and Greiner-Bär, M. and Pavlov, S. G. and Semenov, A. and Wienold, M. and Schrottke, L. and Giehler, M. and Hey, R. and Grahn, Holger-T. and Hübers, Heinz-Wilhelm (2012) Compact THz source based on QCLs for spectroscopic and imaging applications. International Forum on Terahertz Spectroscopy and Imaging, 6.-7. Mrz 2012, Kaiserslautern.

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Abstract

The Terahertz (THz) spectral range has a unique potential for many applications. One example is high-resolution spectroscopy of rotational transition in molecules which are relevant in atmospheric research or astronomy. Another example is imaging for security applications, biomedicine or non-destructive testing. For such applications radiation sources which are compact, easy-to-use and with low input power are required. THz quantum cascade lasers (QCLs) have the potential comply with these requirements [1-7]. However, until now, THz QCLs are operated either with liquid-helium cooling or with large cryocoolers. While these cooling approaches might be acceptable for scientific experiments, they are unacceptable for most practical applications. We report on the development of a compact, easy-to-use THz source, which is based on a QCL operating at 3.1 THz and a compact, low-input-power Stirling cooler.

Item URL in elib:https://elib.dlr.de/78700/
Document Type:Conference or Workshop Item (Poster)
Title:Compact THz source based on QCLs for spectroscopic and imaging applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Richter, HeikoHeiko.Richter (at) dlr.deUNSPECIFIED
Greiner-Bär, M.michael.greiner-baer (at) dlr.deUNSPECIFIED
Pavlov, S. G. sergeij.pavlov (at) dlr.deUNSPECIFIED
Semenov, A.alexei.semenov (at) dlr.deUNSPECIFIED
Wienold, M.PDIUNSPECIFIED
Schrottke, L.PDIUNSPECIFIED
Giehler, M.PDIUNSPECIFIED
Hey, R.PDIUNSPECIFIED
Grahn, Holger-T.PDIUNSPECIFIED
Hübers, Heinz-WilhelmHeinz-Wilhelm.Huebers (at) dlr.deUNSPECIFIED
Date:7 March 2012
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:THz, compact source, cryocooler, QCL
Event Title:International Forum on Terahertz Spectroscopy and Imaging
Event Location:Kaiserslautern
Event Type:Workshop
Event Dates:6.-7. Mrz 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
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 > Experimentelle Planetenphysik
Deposited By: Richter, Dr.rer.nat. Heiko
Deposited On:06 Dec 2012 08:41
Last Modified:06 Dec 2012 08:41

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