@article{Fischer2018-12-12Plasm-44360,
  year={2018},
  doi={10.1038/s41377-018-0108-8},
  title={Plasmonic mid-infrared third harmonic generation in germanium nanoantennas},
  volume={7},
  journal={Light : Science & Applications (LSA)},
  author={Fischer, Marco P. and Riede, Aaron and Gallacher, Kevin and Frigerio, Jacopo and Pellegrini, Giovanni and Ortolani, Michele and Paul, Douglas J. and Isella, Giovanni and Leitenstorfer, Alfred and Brida, Daniele},
  note={Article Number: 106}
}

<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/123456789/44360">
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52"/>
    <dc:creator>Isella, Giovanni</dc:creator>
    <dc:creator>Pellegrini, Giovanni</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Frigerio, Jacopo</dc:creator>
    <dcterms:abstract xml:lang="eng">We demonstrate third harmonic generation in plasmonic antennas consisting of highly doped germanium grown on silicon substrates and designed to be resonant in the mid-infrared frequency range that is inaccessible with conventional nonlinear plasmonic materials. Owing to the near-field enhancement, the result is an ultrafast, subdiffraction, coherent light source with a wavelength tunable between 3 and 5 µm, and ideally overlapping with the fingerprint region of molecular vibrations. To observe the nonlinearity in this challenging spectral window, a high-power femtosecond laser system equipped with parametric frequency conversion in combination with an all-reflective confocal microscope setup is employed. We demonstrate spatially resolved maps of the linear scattering cross section and the nonlinear emission of single isolated antenna structures. A clear third-order power dependence as well as mid-infrared emission spectra prove the nonlinear nature of the light emission. Simulations support the observed resonance length of the double-rod antenna and demonstrate that the field enhancement inside the antenna material is responsible for the nonlinear frequency mixing.</dcterms:abstract>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-12-19T08:28:10Z</dcterms:available>
    <dc:contributor>Pellegrini, Giovanni</dc:contributor>
    <dc:contributor>Riede, Aaron</dc:contributor>
    <dc:contributor>Ortolani, Michele</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-12-19T08:28:10Z</dc:date>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52"/>
    <dc:contributor>Frigerio, Jacopo</dc:contributor>
    <dc:creator>Paul, Douglas J.</dc:creator>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dc:contributor>Leitenstorfer, Alfred</dc:contributor>
    <dc:creator>Brida, Daniele</dc:creator>
    <dc:contributor>Fischer, Marco P.</dc:contributor>
    <dc:contributor>Gallacher, Kevin</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/44360/1/Fischer_2-n5yb1vausgh16.pdf"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/44360/1/Fischer_2-n5yb1vausgh16.pdf"/>
    <dc:creator>Leitenstorfer, Alfred</dc:creator>
    <dc:creator>Gallacher, Kevin</dc:creator>
    <dc:creator>Riede, Aaron</dc:creator>
    <dc:contributor>Isella, Giovanni</dc:contributor>
    <dcterms:title>Plasmonic mid-infrared third harmonic generation in germanium nanoantennas</dcterms:title>
    <dc:creator>Ortolani, Michele</dc:creator>
    <dc:contributor>Paul, Douglas J.</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/44360"/>
    <dc:creator>Fischer, Marco P.</dc:creator>
    <dc:contributor>Brida, Daniele</dc:contributor>
    <dcterms:issued>2018-12-12</dcterms:issued>
    <dc:language>eng</dc:language>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
  </rdf:Description>
</rdf:RDF>