Plasmons in doped finite carbon nanotubes and their interactions with fast electrons and quantum emitters
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We study the potential of highly doped finite carbon nanotubes to serve as plasmonic elements that mediate the interaction between quantum emitters. Similar to graphene, nanotubes support intense plasmons that can be modulated by varying their level of electrical doping. These excitations exhibit large interaction with light and electron beams, as revealed upon examination of the corresponding light extinction cross-section and electron energy-loss spectra. We show that quantum emitters experience record-high Purcell factors, while they undergo strong mutual interaction mediated by their coupling to the tube plasmons. Our results show the potential of doped finite nanotubes as tunable plasmonic materials for quantum optics applications
CitationVega, Sandra de; Cox, Joel D.; García de Abajo, Javier. Plasmons in doped finite carbon nanotubes and their interactions with fast electrons and quantum emitters. "Physical Review B", 31 Agost 2016, vol. 94, núm. 075447.
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