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Wienold, Martin and Alam, Tasmim and Schrottke, Lutz and Grahn, Holger T. and Hübers, Heinz-Wilhelm (2018) Doppler-free spectroscopy with a terahertz quantum-cascade laser. Optics Express, pp. 6692-6699. Optical Society of America. doi: 10.1364/OE.26.006692. ISSN 1094-4087.
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Official URL: https://doi.org/10.1364/OE.26.006692
Abstract
We report on the Doppler-free saturation spectroscopy of a molecular transition at 3.3 THz based on a quantum-cascade laser and an absorption cell in a collinear pump-probe configuration. A Lamb dip with a sub-Doppler linewidth of 170 kHz is observed for a rotational transition of HDO. We found that a certain level of external optical feedback is tolerable as long as the free spectral range of the external cavity is large compared to the width of the absorption line.
| Item URL in elib: | https://elib.dlr.de/119747/ | ||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||
| Title: | Doppler-free spectroscopy with a terahertz quantum-cascade laser | ||||||||||||||||||||||||
| Authors: |
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| Date: | 19 March 2018 | ||||||||||||||||||||||||
| Journal or Publication Title: | Optics Express | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||
| Gold Open Access: | Yes | ||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||
| DOI: | 10.1364/OE.26.006692 | ||||||||||||||||||||||||
| Page Range: | pp. 6692-6699 | ||||||||||||||||||||||||
| Publisher: | Optical Society of America | ||||||||||||||||||||||||
| ISSN: | 1094-4087 | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | molecular spectroscopy, terahertz quantum-cascade laser | ||||||||||||||||||||||||
| 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 Technologies and Applications | ||||||||||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy | ||||||||||||||||||||||||
| Deposited By: | Wienold, Martin | ||||||||||||||||||||||||
| Deposited On: | 23 Apr 2018 08:42 | ||||||||||||||||||||||||
| Last Modified: | 16 Jul 2026 14:18 |
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