Now showing items 1-2 of 2

    • Electron-beam-driven collective-mode metamaterial light source 

      Adamo, Giorgio; Ou, J. Y.; So, J. K.; Jenkins, S. D.; Angelis, F. De; MacDonald, Kevin F.; Fabrizio, Enzo Di; Ruostekoski, J.; Zheludev, Nikolay I. (2012)
      We demonstrate experimentally that the energy from a highly localized free-electron-beam excitation can be converted via a planar plasmonic metamaterial to a low-divergence free-space light beam. This emission, which ...
    • Nonlinear graphene metamaterial 

      Nikolaenko, Andrey E.; Papasimakis, Nikitas; Atmatzakis, Evangelos; Luo, Zhiqiang; Shen, Zexiang; De Angelis, Francesco; Boden, Stuart A.; Fabrizio, Enzo Di; Zheludev, Nikolay I. (2012)
      We demonstrate that the broadband nonlinear optical response of graphene can be resonantly enhanced by more than an order of magnitude through hybridization with a plasmonic metamaterial, while retaining an ultrafast ...