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dc.contributor.authorLundeberg, Mark B.
dc.contributor.authorGao, Yuanda
dc.contributor.authorWoessner, Achim
dc.contributor.authorTan, Cheng
dc.contributor.authorAlonso-González, Pablo
dc.contributor.authorWatanabe, Kenji
dc.contributor.authorTaniguchi, Takashi
dc.contributor.authorHone, James
dc.contributor.authorHillenbrand, Rainer
dc.contributor.authorKoppens, Koppens
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.identifier.citationLundeberg, M. B. [et al.]. Thermoelectric detection and imaging of 1 propagating graphene plasmons. "Nature Materials", 19 Setembre 2016, vol. 16, p. 204-207.
dc.description.abstractControlling, detecting and generating propagating plasmons by all-electrical means is at the heart of on-chip nano-optical processing1, 2, 3. Graphene carries long-lived plasmons that are extremely confined and controllable by electrostatic fields4, 5, 6, 7; however, electrical detection of propagating plasmons in graphene has not yet been realized. Here, we present an all-graphene mid-infrared plasmon detector operating at room temperature, where a single graphene sheet serves simultaneously as the plasmonic medium and detector. Rather than achieving detection via added optoelectronic materials, as is typically done in other plasmonic systems8, 9, 10, 11, 12, 13, 14, 15, our device converts the natural decay product of the plasmon—electronic heat—directly into a voltage through the thermoelectric effect16, 17. We employ two local gates to fully tune the thermoelectric and plasmonic behaviour of the graphene. High-resolution real-space photocurrent maps are used to investigate the plasmon propagation and interference, decay, thermal diffusion, and thermoelectric generation.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.otherNanophotonics and plasmonics
dc.titleThermoelectric detection and imaging of 1 propagating graphene plasmons
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/307806/EU/Tunable light tightly bound to a single sheet of carbon atoms:graphene as a novel platform for nano-optoelectronics/CARBONLIGHT
upcommons.citation.publicationNameNature Materials
dc.relation.dataset4 p.

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