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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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.
|Title:||High-resolution gas phase spectroscopy with a distributed feedback terahertz quantum cascade laser|
|Date:||10 August 2006|
|Journal or Publication Title:||Applied Physics Letters|
|In ISI Web of Science:||Yes|
|Publisher:||American Institute of Applied Physics|
|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)|
|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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