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High-resolution gas phase spectroscopy with a distributed feedback terahertz quantum cascade laser

Hübers, Heinz-Wilhelm and Pavlov, S.G. and Richter, H. and Semenov, A.D. and Mahler, L. and Tredicucci, A. and Beere, H.E. and Ritchie, D.A. (2006) High-resolution gas phase spectroscopy with a distributed feedback terahertz quantum cascade laser. Applied Physics Letters, 89, 061115. American Institute of Applied Physics. DOI: 10.1063/1.2335803. ISSN 0003-6951.

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Abstract

The quantum cascade laser is a powerful, narrow linewidth, and continous wave source of terahertz radiation. The authors have implemented a distributed feedback device in a spectrometer for high-resolution gas phase spectroscopy. Amplitude as well as frequency modulation schemes have been realized. The absolute frequency was determined by mixing the radiation from the quantum cascade laser with that from a gas laser. The pressure broadening and the pressure shift of a rotational transition of methanol at 2.519 THz were measured in order to demonstrate the performance of the spectrometer.

Document Type:Article
Title:High-resolution gas phase spectroscopy with a distributed feedback terahertz quantum cascade laser
Authors:
AuthorsInstitution or Email of Authors
Hübers, Heinz-WilhelmUNSPECIFIED
Pavlov, S.G.UNSPECIFIED
Richter, H.UNSPECIFIED
Semenov, A.D.UNSPECIFIED
Mahler, L.NEST, CNR-INFM and Scuola Normale Superiore, Pisa, Italy
Tredicucci, A.NEST, CNR-INFM and Scuola Normale Superiore, Pisa, Italy
Beere, H.E.Cavendish Laboratory, University of Cambridge, Cambridge, UK
Ritchie, D.A.Cavendish Laboratory, University of Cambridge, Cambridge, UK
Date:10 August 2006
Journal or Publication Title:Applied Physics Letters
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:89
DOI:10.1063/1.2335803
Page Range:061115
Publisher:American Institute of Applied Physics
ISSN:0003-6951
Status:Published
Keywords:terahrtz, quantum cascade laser, spectroscopy, distributed feedback
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W -- no assignement (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Deposited By: Dr. Heinz-Wilhelm Hübers
Deposited On:17 Nov 2006
Last Modified:27 Apr 2009 13:12

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