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Richter, Heiko and Wienold, Martin and Schrottke, Lutz and Biermann, Klaus and Grahn, H. T. and Hübers, H.-W. (2015) 4.7-THz Local Oscillator for the GREAT Heterodyne Spectrometer on SOFIA. In: IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY pp. 539-544. doi: 10.1109/tthz.2015.2442155.
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Abstract
The design and the performance of a 4.7-THz local oscillator (LO) for the GREAT (German REceiver for Astronomy at Terahertz frequencies) heterodyne spectrometer on SOFIA, the Stratospheric Observatory for Infrared Astronomy, are presented. The LO is based on a quantum-cascade laser, which is mounted in a compact mechanical cryocooler. The LO provides up to 150 W output power into a nearly Gaussian shaped beam. It covers the frequency range from approximately 2 to 4 GHz around the fine structure line of neutral atomic oxygen, OI, at 4.7448 THz. The LO has been successfully operated on SOFIA during six observation flights in May 2014 and January 2015.
| Item URL in elib: | https://elib.dlr.de/98949/ | ||||||||||||||||||||||||||||
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| Document Type: | Contribution to a Collection | ||||||||||||||||||||||||||||
| Title: | 4.7-THz Local Oscillator for the GREAT Heterodyne Spectrometer on SOFIA | ||||||||||||||||||||||||||||
| Authors: |
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| Date: | July 2015 | ||||||||||||||||||||||||||||
| Journal or Publication Title: | IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | ||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||||||
| Volume: | 4 | ||||||||||||||||||||||||||||
| DOI: | 10.1109/tthz.2015.2442155 | ||||||||||||||||||||||||||||
| Page Range: | pp. 539-544 | ||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||
| Keywords: | Heterodyne spectroscopy, local oscillator, quantum-cascade laser (QCL), SOFIA, terahertz (THz) | ||||||||||||||||||||||||||||
| 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 - Optimode (old) | ||||||||||||||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Optical Sensor Systems | ||||||||||||||||||||||||||||
| Deposited By: | Richter, Dr.rer.nat. Heiko | ||||||||||||||||||||||||||||
| Deposited On: | 02 Nov 2015 07:03 | ||||||||||||||||||||||||||||
| Last Modified: | 05 Nov 2024 08:02 |
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