Ara es mostren els items 13-21 de 21

  • Pronounced Linewidth Narrowing of an Aluminum Nanoparticle Plasmon Resonance by Interaction with an Aluminum Metallic Film 

    Sobhani, Ali; Manjavacas, Alejandro; Cao, Yang; McClain, Michael J.; García de Abajo, Francisco Javier; Nordlander, Peter; Halas, Naomi J. (ACS, 2015-09-18)
    Article
    Accés restringit per política de l'editorial
    Aluminum nanocrystals and fabricated nanostructures are emerging as highly promising building blocks for plasmonics in the visible region of the spectrum. Even at the individual nanocrystal level, however, the localized ...
  • Plasmon wave function of graphene nanoribbons 

    Silveiro, I.; Plaza Ortega, J. M.; García de Abajo, Francisco Javier (IOP, 2015-08-06)
    Article
    Accés obert
    We find the low-frequency optical response of highly doped individual and arrayed graphene nanoribbons to be accurately described in terms of plasmon wave functions (PWFs). More precisely, we focus on the lowest-order ...
  • Mid-Infrared Plasmonic Biosensing with Graphene 

    Rodrigo, Daniel; Limaj, Odeta; Janner, Davide; Etezadi, Dordaneh; García de Abajo, Francisco Javier; Pruneri, Valerio; Altug, Hatice (Science, 2015-07-10)
    Article
    Accés obert
    Infrared spectroscopy is the technique of choice for chemical identification of biomolecules through their vibrational fingerprints. However, infrared light interacts poorly with nanometric-size molecules. We exploit the ...
  • Interference of surface plasmons and Smith-Purcell emission probed by angle-resolved cathodoluminescence spectroscopy 

    Yamamoto, Naoki; García de Abajo, Francisco Javier; Myroshnychenko, Viktor (APS, 2015-03-30)
    Article
    Accés obert
    We investigate the interplay between geometrical lattice resonances and surface plasmons mediating the emission of Smith-Purcell visible light via angle-resolved cathodoluminescence spectroscopy. We observe strong modulations ...
  • Resonant Visible Light Modulation with Graphene 

    Yu, Renwen; Pruneri, Valerio; García de Abajo, Francisco Javier (ACS, 2015-03-13)
    Article
    Accés obert
    Fast modulation and switching of light at visible and near-infrared (vis–NIR) frequencies are of utmost importance for optical signal processing and sensing technologies. No fundamental limit appears to prevent us from ...
  • Electrical control of optical emitter relaxation pathways enabled by graphene 

    Tielrooij, K. J.; Orona, L.; Ferrier, A.; Badioli, M.; Navickaite, G.; Coop, S.; Nanot, S.; Kalinic, B.; Cesca, T.; Gaudreau, L.; Ma, Q.; Centeno, A.; Pesquera, A.; Zurutuza, A.; Riedmatten, H. de; Goldner, P.; García de Abajo, Francisco Javier; Jarillo-Herrero, P.; Koppens, Frank H. L. (Nature Publishing Group, 2015-01-19)
    Article
    Accés obert
    Controlling the energy flow processes and the associated energy relaxation rates of a light emitter is of fundamental interest and has many applications in the fields of quantum optics, photovoltaics, photodetection, ...
  • Quantum nonlocal effects in individual and interacting graphene nanoribbons 

    Silveiro, Iván; Plaza Ortega, Juan Manuel; García de Abajo, Francisco Javier (Nature Publishing Group, 2015-01-30)
    Article
    Accés obert
    We show that highly doped graphene ribbons can support surface plasmons at near-infrared frequencies when their width is in the nanometer range, leading to important nonlocal and finite quantum-size corrections, such as ...
  • Plasmonics in atomically thin materials 

    García de Abajo, Francisco Javier; Manjavacas, Alejandro (Royal Society of Chemistry, 2015-03-15)
    Article
    Accés obert
    The observation and electrical manipulation of infrared surface plasmons in graphene have triggered a search for similar photonic capabilities in other atomically thin materials that enable electrical modulation of light ...
  • Electrically tunable nonlinear plasmonics in graphene nanoislands 

    Garcia de Abajo, Francisco Javier; Cox, Joel D. (Nature Publishin group, 2014-12-11)
    Article
    Accés obert
    Nonlinear optical processes rely on the intrinsically weak interactions between photons enabled by their coupling with matter. Unfortunately, many applications in nonlinear optics are severely hindered by the small response ...