Now showing items 1-5 of 5

    • Electrically tunable nonlinear plasmonics in graphene nanoislands 

      Garcia de Abajo, Francisco Javier; Cox, Joel D. (Nature Publishin group, 2014-12-11)
      Article
      Open Access
      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 ...
    • Enhancement of nonlinear optical phenomena by localized resonances 

      Rodríguez Echarri, A.; Cox, Joel D.; Yu, Renwen; García de Abajo, F. Javier (ACS, 2018-01-20)
      Article
      Open Access
      Nonlinear optics at the nanoscale is severely limited by the small departure of available materials from linear behavior. Despite intense efforts placed into overcoming this problem using multiple strategies for enhancing ...
    • Nonlinear Plasmonic Sensing with Nanographene 

      Yu, Renwen; Cox, Joel D.; García de Abajo, Francisco Javier (APS, 2016-09-16)
      Article
      Open Access
      Plasmons provide excellent sensitivity to detect analyte molecules through their strong interaction with the dielectric environment. Plasmonic sensors based on noble metals are, however, limited by the spectral broadening ...
    • Plasmons in doped finite carbon nanotubes and their interactions with fast electrons and quantum emitters 

      Vega, Sandra de; Cox, Joel D.; García de Abajo, Javier (APS, 2016-08-31)
      Article
      Open Access
      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 ...
    • Ultrafast nonlinear optical response of Dirac fermions in graphene 

      Baudisch, Matthias; Marini, Andrea; Cox, Joel D.; Zhu, Tony; Silva, Francisco; Teichmann, Stephan; Massicotte, Mathieu; Koppens, Frank; Levitov, Leonid S.; García de Abajo, F. Javier; Biegert, Jens (Nature, 2018-03-09)
      Article
      Open Access
      The speed of solid-state electronic devices, determined by the temporal dynamics of charge carriers, could potentially reach unprecedented petahertz frequencies through direct manipulation by optical fields, consisting ...