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Study of confined coherent acoustic phonon modes in a free-standing cubic GaN membrane by femtosecond spectroscopy

Study of confined coherent acoustic phonon modes in a free-standing cubic GaN membrane by femtosecond spectroscopy

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HE, Chuan, Martin GROSSMANN, Delia BRICK, Martin SCHUBERT, Sergei V. NOVIKOV, C. Thomas FOXON, Vitalyi GUSEV, Anthony J. KENT, Thomas DEKORSY, 2015. Study of confined coherent acoustic phonon modes in a free-standing cubic GaN membrane by femtosecond spectroscopy. In: Applied Physics Letters. 107(11), 112105. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4931495

@article{He2015Study-32038, title={Study of confined coherent acoustic phonon modes in a free-standing cubic GaN membrane by femtosecond spectroscopy}, year={2015}, doi={10.1063/1.4931495}, number={11}, volume={107}, issn={0003-6951}, journal={Applied Physics Letters}, author={He, Chuan and Grossmann, Martin and Brick, Delia and Schubert, Martin and Novikov, Sergei V. and Foxon, C. Thomas and Gusev, Vitalyi and Kent, Anthony J. and Dekorsy, Thomas}, note={Article Number: 112105} }

<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/123456789/32038"> <dc:creator>Schubert, Martin</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-02T10:00:12Z</dc:date> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/32038/3/He_0-304264.pdf"/> <dc:language>eng</dc:language> <dc:creator>Brick, Delia</dc:creator> <dc:creator>He, Chuan</dc:creator> <dc:creator>Grossmann, Martin</dc:creator> <dc:contributor>Dekorsy, Thomas</dc:contributor> <dc:contributor>Kent, Anthony J.</dc:contributor> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-02T10:00:12Z</dcterms:available> <dc:creator>Novikov, Sergei V.</dc:creator> <dc:contributor>Brick, Delia</dc:contributor> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/32038"/> <dc:contributor>Foxon, C. Thomas</dc:contributor> <dc:contributor>Grossmann, Martin</dc:contributor> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/32038/3/He_0-304264.pdf"/> <dc:creator>Dekorsy, Thomas</dc:creator> <dc:creator>Gusev, Vitalyi</dc:creator> <dc:contributor>Novikov, Sergei V.</dc:contributor> <dc:creator>Kent, Anthony J.</dc:creator> <dcterms:title>Study of confined coherent acoustic phonon modes in a free-standing cubic GaN membrane by femtosecond spectroscopy</dcterms:title> <dc:creator>Foxon, C. Thomas</dc:creator> <dc:contributor>Schubert, Martin</dc:contributor> <dc:contributor>Gusev, Vitalyi</dc:contributor> <dc:contributor>He, Chuan</dc:contributor> <dcterms:issued>2015</dcterms:issued> <dcterms:abstract xml:lang="eng">Confined longitudinal coherent acoustic phonon modes are excited and detected in a sub-μm-thick free-standing cubic GaN membrane by femtosecond pump-probe spectroscopy. After fs laser excitation, Brillouin oscillation and thickness oscillation with frequencies up to 100 GHz are observed and studied in the time domain. We found an initial expansion of the membrane upon optical excitation at 400 nm. Our experimental results confirmed earlier existing theoretical predictions and experimental observations that the hydrostatic deformation potential of cubic GaN is positive.</dcterms:abstract> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:rights>terms-of-use</dc:rights> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> </rdf:Description> </rdf:RDF>

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