KOPS - The Institutional Repository of the University of Konstanz

Unambiguous real-time terahertz frequency metrology using dual 10  GHz femtosecond frequency combs

Unambiguous real-time terahertz frequency metrology using dual 10  GHz femtosecond frequency combs

Cite This

Files in this item

Checksum: MD5:8170ec835e84234d74d320d5036093f2

KLIEBISCH, Oliver, Dirk C. HEINECKE, Stefano BARBIERI, Giorgio SANTARELLI, Hua LI, Carlo SIRTORI, Thomas DEKORSY, 2018. Unambiguous real-time terahertz frequency metrology using dual 10  GHz femtosecond frequency combs. In: Optica. 5(11), pp. 1431-1437. eISSN 2334-2536. Available under: doi: 10.1364/OPTICA.5.001431

@article{Kliebisch2018-11-20Unamb-45505, title={Unambiguous real-time terahertz frequency metrology using dual 10  GHz femtosecond frequency combs}, year={2018}, doi={10.1364/OPTICA.5.001431}, number={11}, volume={5}, journal={Optica}, pages={1431--1437}, author={Kliebisch, Oliver and Heinecke, Dirk C. and Barbieri, Stefano and Santarelli, Giorgio and Li, Hua and Sirtori, Carlo and Dekorsy, Thomas} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/45505"> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-03-18T14:35:48Z</dc:date> <dcterms:rights rdf:resource="https://kops.uni-konstanz.de/page/termsofuse"/> <dc:creator>Heinecke, Dirk C.</dc:creator> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:contributor>Dekorsy, Thomas</dc:contributor> <dc:creator>Li, Hua</dc:creator> <dc:language>eng</dc:language> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Santarelli, Giorgio</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-03-18T14:35:48Z</dcterms:available> <dcterms:issued>2018-11-20</dcterms:issued> <dcterms:abstract xml:lang="eng">Terahertz frequency metrology by radio frequency downconversion using femtosecond optical sampling relies on the harmonic factor retrieval between the terahertz frequency and the optical sampling rate. At typical femtosecond laser repetition rates, this imposes an ambiguity for frequency metrology. We report on a dual-comb sampling system for the unambiguous frequency measurement of terahertz quantum cascade lasers with hertz-level precision. Two Ti:sapphire oscillators with 10 GHz repetition rate are used for the electro-optic sampling of terahertz radiation at 2.5 THz emitted by actively mode-locked terahertz quantum cascade lasers with 9.7 GHz and 19.6 GHz repetition rates. By coherent downconversion, the emitted terahertz waveforms are measured in the radio frequency domain. The terahertz frequency comb is stabilized by employing a phase-locked loop on a radio frequency beat-note signal. A second infrared sampling comb is used to measure the absolute frequencies of the terahertz radiation. This method, which is based on the detuning of the sampling repetition rates, allows the direct retrieval of the quantum cascade laser’s absolute frequency in real time without using additional optical frequency references for calibration. In order to demonstrate the feasibility of the stabilization and readout technique, a high-resolution spectroscopy measurement on gaseous methanol is presented.</dcterms:abstract> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/45505"/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Heinecke, Dirk C.</dc:contributor> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/45505/1/Kliebisch_2-rhg5zvnst8y6.pdf"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:creator>Sirtori, Carlo</dc:creator> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/45505/1/Kliebisch_2-rhg5zvnst8y6.pdf"/> <dc:creator>Kliebisch, Oliver</dc:creator> <dc:rights>terms-of-use</dc:rights> <dc:contributor>Li, Hua</dc:contributor> <dcterms:title>Unambiguous real-time terahertz frequency metrology using dual 10  GHz femtosecond frequency combs</dcterms:title> <dc:creator>Barbieri, Stefano</dc:creator> <dc:contributor>Barbieri, Stefano</dc:contributor> <dc:creator>Dekorsy, Thomas</dc:creator> <dc:contributor>Sirtori, Carlo</dc:contributor> <dc:contributor>Santarelli, Giorgio</dc:contributor> <dc:contributor>Kliebisch, Oliver</dc:contributor> </rdf:Description> </rdf:RDF>

Downloads since Mar 18, 2019 (Information about access statistics)

Kliebisch_2-rhg5zvnst8y6.pdf 17

This item appears in the following Collection(s)

Search KOPS


Browse

My Account