High-resolution terahertz spectrometer

Klatt, Gregor; Gebs, Raphael; Schäfer, Hanjo; Nagel, Michael; Janke, Christof; Bartels, Albrecht; Dekorsy, Thomas

High-resolution terahertz spectrometer

Dateien

Klatt_et_al.pdfGröße: 4.13 MBDownloads: 858

Datum

2010

Publikationstyp

Zeitschriftenartikel

unikn.publication.listelement.citation.prefix.version.undefined

IEEE journal of selected topics in quantum electronics. 2010, 17(1), pp. 159-169. Available under: doi: 10.1109/JSTQE.2010.2047635

Zusammenfassung

Terahertz time-domain spectroscopy (THz-TDS) based on high-speed asynchronous optical sampling (ASOPS) with two offset-locked GHz femtosecond lasers requires no mechanical time-delay scanner. Consequently, measurements with 1-GHz frequency resolution are performed at intrinsically high scan rates in the multikilohertz range. This is at least one order, in most cases several orders of magnitude faster than conventional approaches employing mechanical time-delay scanners. We report a system offering a unique combination of high-frequency resolution (1 GHz) and high scan rate (2 kHz) with a spectral coverage of more than 6 THz. Its capabilities for high-precision spectroscopy are demonstrated by measuring the absorption spectrum of a mixture of $hbox{H}_{2}hbox{O}$, D$2$O, and hydrogen deuterium oxide (HDO) vapor. $hbox{H}{2}hbox{O}$ and HDO vapor absorption spectra are accurately tabulated in databases. However, D$2$ O absorption data are rare, because of residual $hbox{H}{2}hbox{O}$ and HDO often present when measuring pure D$_2$O. Here, we present a high-resolution absorption spectrum of D$_2$O vapor numerically extracted from the absorption spectrum of the three-component mixture. In addition, we show that the high spectral resolution of the ASOPS THz-TDS system provides benefits in the analysis of frequency-selective surface sensors, which are promising candidates for biosensing applications in the THz regime.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

KLATT, Gregor, Raphael GEBS, Hanjo SCHÄFER, Michael NAGEL, Christof JANKE, Albrecht BARTELS, Thomas DEKORSY, 2010. High-resolution terahertz spectrometer. In: IEEE journal of selected topics in quantum electronics. 2010, 17(1), pp. 159-169. Available under: doi: 10.1109/JSTQE.2010.2047635

BibTex

@article{Klatt2010Highr-314,
  year={2010},
  doi={10.1109/JSTQE.2010.2047635},
  title={High-resolution terahertz spectrometer},
  number={1},
  volume={17},
  journal={IEEE journal of selected topics in quantum electronics},
  pages={159--169},
  author={Klatt, Gregor and Gebs, Raphael and Schäfer, Hanjo and Nagel, Michael and Janke, Christof and Bartels, Albrecht and Dekorsy, Thomas}
}

RDF

<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/server/rdf/resource/123456789/314">
    <dc:contributor>Nagel, Michael</dc:contributor>
    <dc:format>application/pdf</dc:format>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-05-27T08:31:06Z</dc:date>
    <dc:contributor>Janke, Christof</dc:contributor>
    <dc:contributor>Bartels, Albrecht</dc:contributor>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:bibliographicCitation>First publ. in: IEEE journal of selected topics in quantum electronics 17 (2010), 1, pp. 159-169</dcterms:bibliographicCitation>
    <dcterms:issued>2010</dcterms:issued>
    <dc:creator>Dekorsy, Thomas</dc:creator>
    <dc:creator>Schäfer, Hanjo</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Nagel, Michael</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/314"/>
    <dc:creator>Klatt, Gregor</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-05-27T08:31:06Z</dcterms:available>
    <dc:contributor>Klatt, Gregor</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:creator>Janke, Christof</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/314/1/Klatt_et_al.pdf"/>
    <dc:contributor>Schäfer, Hanjo</dc:contributor>
    <dc:creator>Bartels, Albrecht</dc:creator>
    <dcterms:title>High-resolution terahertz spectrometer</dcterms:title>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/314/1/Klatt_et_al.pdf"/>
    <dc:creator>Gebs, Raphael</dc:creator>
    <dcterms:abstract xml:lang="eng">Terahertz time-domain spectroscopy (THz-TDS) based on high-speed asynchronous optical sampling (ASOPS) with two offset-locked GHz femtosecond lasers requires no mechanical time-delay scanner. Consequently, measurements with 1-GHz frequency resolution are performed at intrinsically high scan rates in the multikilohertz range. This is at least one order, in most cases several orders of magnitude faster than conventional approaches employing mechanical time-delay scanners. We report a system offering a unique combination of high-frequency resolution (1 GHz) and high scan rate (2 kHz) with a spectral coverage of more than 6 THz. Its capabilities for high-precision spectroscopy are demonstrated by measuring the absorption spectrum of a mixture of $hbox{H}_{2}hbox{O}$, D$_2$O, and hydrogen deuterium oxide (HDO) vapor. $hbox{H}_{2}hbox{O}$ and HDO vapor absorption spectra are accurately tabulated in databases. However, D$_2$ O absorption data are rare, because of residual $hbox{H}_{2}hbox{O}$ and HDO often present when measuring pure D$_2$O. Here, we present a high-resolution absorption spectrum of D$_2$O vapor numerically extracted from the absorption spectrum of the three-component mixture. In addition, we show that the high spectral resolution of the ASOPS THz-TDS system provides benefits in the analysis of frequency-selective surface sensors, which are promising candidates for biosensing applications in the THz regime.</dcterms:abstract>
    <dc:contributor>Dekorsy, Thomas</dc:contributor>
    <dc:contributor>Gebs, Raphael</dc:contributor>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja