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

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

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RIOUX, Julien, Guido BURKARD, John E. SIPE, 2011. Current injection by coherent one- and two-photon excitation in graphene and its bilayer

@unpublished{Rioux2011Curre-24809, title={Current injection by coherent one- and two-photon excitation in graphene and its bilayer}, year={2011}, author={Rioux, Julien and Burkard, Guido and Sipe, John E.} }

<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/123456789/24809"> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-10-11T07:43:16Z</dcterms:available> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:issued>2011</dcterms:issued> <dcterms:title>Current injection by coherent one- and two-photon excitation in graphene and its bilayer</dcterms:title> <dc:creator>Burkard, Guido</dc:creator> <dc:creator>Rioux, Julien</dc:creator> <dc:contributor>Rioux, Julien</dc:contributor> <dcterms:rights rdf:resource="https://kops.uni-konstanz.de/page/termsofuse"/> <dc:contributor>Burkard, Guido</dc:contributor> <dc:creator>Sipe, John E.</dc:creator> <dc:contributor>Sipe, John E.</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-10-11T07:43:16Z</dc:date> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:language>eng</dc:language> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/24809"/> <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, $\omega$, and one-photon absorption at the second harmonic, $2\omega$. 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:rights>terms-of-use</dc:rights> </rdf:Description> </rdf:RDF>

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