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Doppler-free spectroscopy with a terahertz quantum-cascade laser

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/
Document Type:Article
Title:Doppler-free spectroscopy with a terahertz quantum-cascade laser
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wienold, MartinMartin.Wienold (at) dlr.deUNSPECIFIED
Alam, TasmimTasmim.Alam (at) dlr.deUNSPECIFIED
Schrottke, LutzPaul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIED
Grahn, Holger T.Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e. V.UNSPECIFIED
Hübers, Heinz-WilhelmHeinz-Wilhelm.Huebers (at) dlr.deUNSPECIFIED
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 - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Optische Technologien und Anwendungen
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:15 Jan 2019 11:30

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