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Hagelschuer, Till and Wienold, Martin and Richter, Heiko and Lutz, Schrottke and Biermann, Klaus and Grahn, Holger T. and Hübers, Heinz-Wilhelm (2016) Terahertz gas spectroscopy through self-mixing in a quantum-cascade laser. Applied Physics Letters. American Institute of Physics (AIP). doi: 10.1063/1.4967435. ISSN 0003-6951.
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Official URL: http://scitation.aip.org/content/aip/journal/apl/109/19/10.1063/1.4967435
Abstract
We demonstrate the feasibility of high-resolution terahertz gas spectroscopy based on the external optical feedback effect in a quantum-cascade laser. Tuning the frequency of the quantum-cascade laser across a molecular absorption line of CH3OH leads to a reduction of the optical feedback, which can be detected by monitoring the voltage across the quantum-cascade laser. This method provides a high spectral resolution and a sensitivity comparable to that obtained with a cryogenically cooled Ge:Ga photoconductive detector.
| Item URL in elib: | https://elib.dlr.de/110197/ | ||||||||||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||||||||||
| Additional Information: | Veröffentlichung im Rahmen der Helmholtz Research School on Security Technologies (HRSST) | ||||||||||||||||||||||||||||||||
| Title: | Terahertz gas spectroscopy through self-mixing in a quantum-cascade laser | ||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 7 November 2016 | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Applied Physics Letters | ||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||
| DOI: | 10.1063/1.4967435 | ||||||||||||||||||||||||||||||||
| Publisher: | American Institute of Physics (AIP) | ||||||||||||||||||||||||||||||||
| ISSN: | 0003-6951 | ||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||
| Keywords: | Quantum Cascade Laser, Spectroscopy, Terahertz | ||||||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||||||||||||||||||
| HGF - Program Themes: | Earth Observation | ||||||||||||||||||||||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||
| DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||||||||||||||
| DLR - Research theme (Project): | R - Optical remote sensing for security-relevant applications | ||||||||||||||||||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Optical Sensor Systems Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy | ||||||||||||||||||||||||||||||||
| Deposited By: | Hagelschuer, Till | ||||||||||||||||||||||||||||||||
| Deposited On: | 05 Jan 2017 16:19 | ||||||||||||||||||||||||||||||||
| Last Modified: | 27 Nov 2023 14:01 |
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