Mechanisms for the generation of coherent longitudinal-optical phonons in GaAs/AlGaAs multiple quantum wells
Mechanisms for the generation of coherent longitudinal-optical phonons in GaAs/AlGaAs multiple quantum wells
Loading...
Date
2001
Authors
Editors
Journal ISSN
Electronic ISSN
ISBN
Bibliographical data
Publisher
Series
URI (citable link)
DOI (citable link)
International patent number
Link to the license
EU project number
Project
Open Access publication
Collections
Title in another language
Publication type
Journal article
Publication status
Published in
Physical Review Letters ; 86 (2001), 8. - pp. 1630-1633
Abstract
We show that coherent optical phonons in GaAs multiple quantum wells are generated in a completely different way as compared to bulk GaAs. Unlike in bulk GaAs where the ultrafast screening of electric fields by photogenerated charge carriers is known to be dominant, three distinctive generation mechanisms contribute simultaneously in multiple quantum wells. The interplay between impulsive Raman scattering, forbidden Raman scattering, and screening of surface electric fields, whose relative strengths are determined by laser intensity, detuning from the exciton resonance, and the barrier width, generates a rich variety of new phenomena.
Summary in another language
Subject (DDC)
530 Physics
Keywords
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690
YEE, K. J., Y. S. LIM, Thomas DEKORSY, D. S. KIM, 2001. Mechanisms for the generation of coherent longitudinal-optical phonons in GaAs/AlGaAs multiple quantum wells. In: Physical Review Letters. 86(8), pp. 1630-1633. Available under: doi: 10.1103/PhysRevLett.86.1630BibTex
@article{Yee2001Mecha-9428, year={2001}, doi={10.1103/PhysRevLett.86.1630}, title={Mechanisms for the generation of coherent longitudinal-optical phonons in GaAs/AlGaAs multiple quantum wells}, number={8}, volume={86}, journal={Physical Review Letters}, pages={1630--1633}, author={Yee, K. J. and Lim, Y. S. and Dekorsy, Thomas and Kim, D. S.} }
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/123456789/9428"> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dc:contributor>Yee, K. J.</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9428"/> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9428/1/Mechanisms_for_the_generation_of_coherent.pdf"/> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9428/1/Mechanisms_for_the_generation_of_coherent.pdf"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:56:26Z</dc:date> <dc:creator>Dekorsy, Thomas</dc:creator> <dc:creator>Lim, Y. S.</dc:creator> <dcterms:bibliographicCitation>First publ. in: Physical Review Letters 86 (2001), 8, pp. 1630-1633</dcterms:bibliographicCitation> <dc:contributor>Kim, D. S.</dc:contributor> <dcterms:abstract xml:lang="eng">We show that coherent optical phonons in GaAs multiple quantum wells are generated in a completely different way as compared to bulk GaAs. Unlike in bulk GaAs where the ultrafast screening of electric fields by photogenerated charge carriers is known to be dominant, three distinctive generation mechanisms contribute simultaneously in multiple quantum wells. The interplay between impulsive Raman scattering, forbidden Raman scattering, and screening of surface electric fields, whose relative strengths are determined by laser intensity, detuning from the exciton resonance, and the barrier width, generates a rich variety of new phenomena.</dcterms:abstract> <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights> <dc:creator>Kim, D. S.</dc:creator> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dc:language>eng</dc:language> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:issued>2001</dcterms:issued> <dc:contributor>Lim, Y. S.</dc:contributor> <dc:format>application/pdf</dc:format> <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dc:contributor>Dekorsy, Thomas</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:56:26Z</dcterms:available> <dc:creator>Yee, K. J.</dc:creator> <dcterms:title>Mechanisms for the generation of coherent longitudinal-optical phonons in GaAs/AlGaAs multiple quantum wells</dcterms:title> </rdf:Description> </rdf:RDF>
Internal note
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Examination date of dissertation
Method of financing
Comment on publication
Alliance license
Corresponding Authors der Uni Konstanz vorhanden
International Co-Authors
Bibliography of Konstanz
No