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Coherent acoustic phonons in phonon cavities investigated by asynchronous optical sampling

Coherent acoustic phonons in phonon cavities investigated by asynchronous optical sampling

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HUDERT, Florian, Albrecht BARTELS, Christof JANKE, Thomas DEKORSY, Klaus KÖHLER, 2007. Coherent acoustic phonons in phonon cavities investigated by asynchronous optical sampling. In: Journal of Physics. 92, 12012. ISSN 1742-6588. eISSN 1742-6596

@article{Hudert2007Coher-983, title={Coherent acoustic phonons in phonon cavities investigated by asynchronous optical sampling}, year={2007}, volume={92}, issn={1742-6588}, journal={Journal of Physics}, author={Hudert, Florian and Bartels, Albrecht and Janke, Christof and Dekorsy, Thomas and Köhler, Klaus}, note={Article Number: 12012} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/983"> <dc:rights>deposit-license</dc:rights> <dc:creator>Janke, Christof</dc:creator> <dc:creator>Hudert, Florian</dc:creator> <dc:contributor>Dekorsy, Thomas</dc:contributor> <dc:language>eng</dc:language> <dcterms:abstract xml:lang="eng">Using a recently introduced measurement technique, called asynchronous optical sampling (ASOPS), we have investigated the dynamics of coherent acoustic phonons in a semiconductor heterostructure composed of a GaAs film between two GaAs/AlAs superlattices, serving as a cavity for acoustic phonons. Measurements were performed at liquid helium temperatures. The possibility to perform two-color pump-probe spectroscopy allowed us to tune the probe pulse energy to the cavity band gap, while sweeping the pump pulse energy over the superlattice resonance. The large measurement window of 1 ns in combination with a resolution of about 150 fs made a detailed analysis of the observed phonon dynamics possible. We observed a long lived oscillation in the gap of the phonon dispersion at 466 GHz, which we attribute to a cavity mode.</dcterms:abstract> <dcterms:issued>2007</dcterms:issued> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:52:37Z</dcterms:available> <dc:creator>Köhler, Klaus</dc:creator> <dc:contributor>Janke, Christof</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/983"/> <dc:contributor>Köhler, Klaus</dc:contributor> <dcterms:bibliographicCitation>Journal of Physics : Conference series ; 92 (2007). - 012012</dcterms:bibliographicCitation> <dc:creator>Bartels, Albrecht</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:52:37Z</dc:date> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> <dcterms:title>Coherent acoustic phonons in phonon cavities investigated by asynchronous optical sampling</dcterms:title> <dc:contributor>Bartels, Albrecht</dc:contributor> <dc:creator>Dekorsy, Thomas</dc:creator> <dc:contributor>Hudert, Florian</dc:contributor> </rdf:Description> </rdf:RDF>

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