Current injection by coherent one- and two-photon excitation in graphene and its bilayer

Rioux, Julien; Burkard, Guido; Sipe, John

Current injection by coherent one- and two-photon excitation in graphene and its bilayer

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2011

Autor:innen

Rioux, Julien

Burkard, Guido

Sipe, John

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review B. 2011, 83(19). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.83.195406

Zusammenfassung

Coherent control of optically injected carrier distributions in single and bilayer graphene allows the injection of electrical currents. Using a tight-binding model and Fermi’s golden rule, we derive the carrier and photocurrent densities achieved via interference of the quantum amplitudes for two-photon absorption at a fundamental frequency, ω, and one-photon absorption at the second harmonic, 2ω. Strong currents are injected under co-circular and linear polarizations. In contrast, opposite-circular polarization yields no net current. For single-layer graphene, the magnitude of the current is unaffected by the rotation of linear-polarization axes, in contrast with the bilayer and with conventional semiconductors. The dependence of the photocurrent on the linear-polarization axes is a clear and measurable signature of interlayer coupling in AB-stacked multilayer graphene. We also find that single and bilayer graphene exhibit a strong, distinct linear-circular dichroism in two-photon absorption.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

RIOUX, Julien, Guido BURKARD, John SIPE, 2011. Current injection by coherent one- and two-photon excitation in graphene and its bilayer. In: Physical Review B. 2011, 83(19). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.83.195406

BibTex

@article{Rioux2011Curre-19161,
  year={2011},
  doi={10.1103/PhysRevB.83.195406},
  title={Current injection by coherent one- and two-photon excitation in graphene and its bilayer},
  number={19},
  volume={83},
  issn={1098-0121},
  journal={Physical Review B},
  author={Rioux, Julien and Burkard, Guido and Sipe, John}
}

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/123456789/19161">
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:title>Current injection by coherent one- and two-photon excitation in graphene and its bilayer</dcterms:title>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:creator>Burkard, Guido</dc:creator>
    <dcterms:issued>2011</dcterms:issued>
    <dc:contributor>Rioux, Julien</dc:contributor>
    <dc:creator>Rioux, Julien</dc:creator>
    <dcterms:bibliographicCitation>Publ. in: Physical Review B ; 83 (2011), 19. - 195406</dcterms:bibliographicCitation>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Burkard, Guido</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-05-02T10:24:35Z</dcterms:available>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/19161"/>
    <dc:language>eng</dc:language>
    <dc:contributor>Sipe, John</dc:contributor>
    <dcterms:abstract xml:lang="eng">Coherent control of optically injected carrier distributions in single and bilayer graphene allows the injection of electrical currents. Using a tight-binding model and Fermi’s golden rule, we derive the carrier and photocurrent densities achieved via interference of the quantum amplitudes for two-photon absorption at a fundamental frequency, ω, and one-photon absorption at the second harmonic, 2ω. Strong currents are injected under co-circular and linear polarizations. In contrast, opposite-circular polarization yields no net current. For single-layer graphene, the magnitude of the current is unaffected by the rotation of linear-polarization axes, in contrast with the bilayer and with conventional semiconductors. The dependence of the photocurrent on the linear-polarization axes is a clear and measurable signature of interlayer coupling in AB-stacked multilayer graphene. We also find that single and bilayer graphene exhibit a strong, distinct linear-circular dichroism in two-photon absorption.</dcterms:abstract>
    <dc:creator>Sipe, John</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-05-02T10:24:35Z</dc:date>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja