Now showing items 1-5 of 5

    • Control of radiative processes using tunable plasmonic nanopatch antennas. 

      Ciracì, Dr Cristian; Hoang, TB; McGuire, F; Mikkelsen, MH; Mock, JJ; Rose, A; Smith, David R (Nano Lett, 2014-08-13)
      The radiative processes associated with fluorophores and other radiating systems can be profoundly modified by their interaction with nanoplasmonic structures. Extreme electromagnetic environments can be created in plasmonic ...
    • Far-field analysis of axially symmetric three-dimensional directional cloaks. 

      Ciracì, Dr Cristian; Smith, David R; Urzhumov, Yaroslav A (Opt Express, 2013-04-22)
      Axisymmetric radiating and scattering structures whose rotational invariance is broken by non-axisymmetric excitations present an important class of problems in electromagnetics. For such problems, a cylindrical ...
    • Going beyond Axisymmetry: 2.5D Vector Electromagnetics 

      Ciracì, Dr Cristian; Landy, Nathan I; Smith, David R; Urzhumov, Yaroslav A (2012-10)
      Linear wave propagation through inhomogeneous structures of size R≫λ (Fig.1) is a computationally challenging problem, in particular when using finite element methods, due to the steep increase of the number of degrees of ...
    • Nanophotonics: Optical time reversal with graphene 

      Ciracì, Dr Cristian; Smith, David R; Urzhumov, Yaroslav A (2013-07)
      Would you ever guess that a microscopic flake of graphite could reverse the diffraction of light? An experiment that demonstrates just such an effect highlights the exciting optical applications of graphene — an atomic layer ...
    • Probing the ultimate limits of plasmonic enhancement. 

      Chilkoti, A; Ciracì, Dr Cristian; Fernández-Domínguez, AI; Hill, RT; Maier, SA; Mock, JJ; Pendry, JB; ... (9 authors) (Science, 2012-08-31)
      Metals support surface plasmons at optical wavelengths and have the ability to localize light to subwavelength regions. The field enhancements that occur in these regions set the ultimate limitations on a wide range of nonlinear ...