6533b82ffe1ef96bd12951c0
RESEARCH PRODUCT
Launching propagating surface plasmon polaritons by a single carbon nanotube dipolar emitter.
Gérard Colas-des-francsNicolai F. HartmannAlexandre BouhelierGiovanni PireddaJohann BerthelotAchim Hartschuhsubject
NanotubeMaterials scienceLightPhysics::OpticsBioengineering02 engineering and technologyCarbon nanotube7. Clean energy01 natural sciencesMolecular physicslaw.invention010309 opticsCondensed Matter::Materials Sciencelaw0103 physical sciencesMaterials TestingScattering RadiationGeneral Materials ScienceComputer Simulation[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/MicroelectronicsParticle SizePlasmonbusiness.industryMechanical EngineeringSurface plasmonGeneral ChemistrySurface Plasmon Resonance021001 nanoscience & nanotechnologyCondensed Matter PhysicsPolarization (waves)Surface plasmon polaritonNanostructuresOptical properties of carbon nanotubesModels ChemicalMetalsOptoelectronics[ SPI.NANO ] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics0210 nano-technologybusinessExcitationdescription
International audience; We report on the excitation of propagating surface plasmon polaritons in thin metal films by a single emitter. Upon excitation in the visible regime, individual semiconducting single-walled carbon nanotubes are shown to act as directional near-infrared point dipole sources launching propagating surface plasmons mainly along the direction of the nanotube axis. Plasmon excitation and propagation is monitored in Fourier and real space by leakage radiation microscopy and is modeled by rigorous theoretical calculations. Coupling to plasmons almost completely reshapes the emission of nanotubes both spatially and with respect to polarization as compared to photoluminescence on a dielectric substrate.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-12-20 | Nano letters |