Acoustic waves undetectable by transient reflectivity measurements

Lade...
Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2017
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Physical Review B. 2017, 95(18), 184302. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.95.184302
Zusammenfassung

A free-standing GaAs membrane is investigated by pump-probe reflectivity measurements with femtosecond laser pulses of 400-nm wavelength. It is found that the detected wide spectrum of laser-generated coherent strain waves in the membrane does not contain a specific hypersonic frequency. Theoretical analysis reveals that this effect is related to zero sensitivity of the acousto-optic detection at a particular frequency defined by the wavelength of the probe laser pulse on the mechanical free surface of the GaAs membrane. We predict that a similar behavior is expected in Si and Au membranes and films, indicating that the presence of zeros in the spectral transformation function of acousto-optic conversion is a rather general phenomenon in picosecond ultrasonics that has so far been neglected.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690HE, Chuan, Oliver RISTOW, Martin GROSSMANN, Delia BRICK, Yuning GUO, Martin SCHUBERT, Mike HETTICH, Vitalyi GUSEV, Thomas DEKORSY, 2017. Acoustic waves undetectable by transient reflectivity measurements. In: Physical Review B. 2017, 95(18), 184302. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.95.184302
BibTex
@article{He2017-05-11Acous-39415,
  year={2017},
  doi={10.1103/PhysRevB.95.184302},
  title={Acoustic waves undetectable by transient reflectivity measurements},
  number={18},
  volume={95},
  issn={2469-9950},
  journal={Physical Review B},
  author={He, Chuan and Ristow, Oliver and Grossmann, Martin and Brick, Delia and Guo, Yuning and Schubert, Martin and Hettich, Mike and Gusev, Vitalyi and Dekorsy, Thomas},
  note={Article Number: 184302}
}
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/123456789/39415">
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39415"/>
    <dc:contributor>Hettich, Mike</dc:contributor>
    <dcterms:abstract xml:lang="eng">A free-standing GaAs membrane is investigated by pump-probe reflectivity measurements with femtosecond laser pulses of 400-nm wavelength. It is found that the detected wide spectrum of laser-generated coherent strain waves in the membrane does not contain a specific hypersonic frequency. Theoretical analysis reveals that this effect is related to zero sensitivity of the acousto-optic detection at a particular frequency defined by the wavelength of the probe laser pulse on the mechanical free surface of the GaAs membrane. We predict that a similar behavior is expected in Si and Au membranes and films, indicating that the presence of zeros in the spectral transformation function of acousto-optic conversion is a rather general phenomenon in picosecond ultrasonics that has so far been neglected.</dcterms:abstract>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:creator>Schubert, Martin</dc:creator>
    <dcterms:title>Acoustic waves undetectable by transient reflectivity measurements</dcterms:title>
    <dc:creator>Grossmann, Martin</dc:creator>
    <dc:contributor>He, Chuan</dc:contributor>
    <dc:creator>Guo, Yuning</dc:creator>
    <dc:contributor>Brick, Delia</dc:contributor>
    <dc:contributor>Schubert, Martin</dc:contributor>
    <dc:creator>Hettich, Mike</dc:creator>
    <dc:contributor>Guo, Yuning</dc:contributor>
    <dc:creator>He, Chuan</dc:creator>
    <dcterms:issued>2017-05-11</dcterms:issued>
    <dc:creator>Ristow, Oliver</dc:creator>
    <dc:contributor>Dekorsy, Thomas</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-06-27T08:40:59Z</dcterms:available>
    <dc:contributor>Ristow, Oliver</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-06-27T08:40:59Z</dc:date>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Gusev, Vitalyi</dc:contributor>
    <dc:creator>Gusev, Vitalyi</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Brick, Delia</dc:creator>
    <dc:language>eng</dc:language>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Grossmann, Martin</dc:contributor>
    <dc:creator>Dekorsy, Thomas</dc:creator>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Diese Publikation teilen