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dc.contributor.authorDegl'Innocenti, Riccardoen
dc.contributor.authorXiao, Longen
dc.contributor.authorKindness, Stephenen
dc.contributor.authorKamboj, Varunen
dc.contributor.authorWei, Binbinen
dc.contributor.authorBraeuninger-Weimer, Philippen
dc.contributor.authorNakanishi, Kenichien
dc.contributor.authorAria, AIen
dc.contributor.authorHofmann, Stephanen
dc.contributor.authorBeere, Harveyen
dc.contributor.authorRitchie, Daviden
dc.date.accessioned2017-05-24T13:31:54Z
dc.date.available2017-05-24T13:31:54Z
dc.date.issued2017-03-27en
dc.identifier.issn0022-3727
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/264403
dc.description.abstractWe present a fast room temperature terahertz detector based on graphene loaded plasmonic antenna arrays. The antenna elements, which are arranged in series and are shorted by graphene, are contacting source and drain metallic pads, thus providing both the optical resonant element and the electrodes. The distance between the antenna's arms of approximately 300 nm allows a strong field enhancement in the graphene region, when the incident radiation is resonant with the antennas. The current passing through the source and drain is dependent on the graphene's conductivity, which is modified by the power impinging onto the detector as well as from the biasing back-gate voltage. The incident radiation power is thus translated into a current modification, with the main detection mechanism being attributed to the bolometric effect. The device has been characterized and tested with two bound to continuum terahertz quantum cascade lasers emitting at a single frequency around 2 THz and 2.7 THz yielding a maximum responsivity of ~2 mA W$^{−1}$.
dc.description.sponsorshipRD, HEB and DAR acknowledge financial support from the Engineering and Physical Sciences Research Council (Grant No. EP/J017671/1, Coherent Terahertz Systems). SH acknowledges funding from EPSRC (Grant No. EP/K016636/1, GRAPHTED). KN acknowledges the University of Cambridge Nanoscience Doctoral Training Centre (EPSRC EP/G037221/1) for financial support.
dc.language.isoenen
dc.publisherIOP Publishing
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectgrapheneen
dc.subjectbolometeren
dc.subjectterahertzen
dc.subjectquantum cascade laseren
dc.titleBolometric detection of terahertz quantum cascade laser radiation with graphene-plasmonic antenna arraysen
dc.typeArticle
prism.number174001en
prism.publicationDate2017en
prism.publicationNameJournal of Physics D: Applied Physicsen
prism.volume50en
dc.identifier.doi10.17863/CAM.9890
dcterms.dateAccepted2017-03-06en
rioxxterms.versionofrecord10.1088/1361-6463/aa64bfen
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2017-03-27en
dc.contributor.orcidDegl'Innocenti, Riccardo [0000-0003-2655-1997]
dc.contributor.orcidBraeuninger-Weimer, Philipp [0000-0001-8677-1647]
dc.contributor.orcidNakanishi, Kenichi [0000-0003-3816-1806]
dc.contributor.orcidHofmann, Stephan [0000-0001-6375-1459]
dc.contributor.orcidBeere, Harvey [0000-0001-5630-2321]
dc.contributor.orcidRitchie, David [0000-0002-9844-8350]
dc.identifier.eissn1361-6463
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/K016636/1)
pubs.funder-project-idEPSRC (1504244)
pubs.funder-project-idUNIVERSITY COLLEGE LONDON (FB EPSRC) (EP/J017671/1)
pubs.funder-project-idEPSRC (EP/G037221/1)


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International