@article {2370, title = {Photonic surface states in plasmonic crystals of metallic nanoshells}, journal = {Physical Review B}, volume = {84}, year = {2011}, pages = {115455 (5 pages)}, abstract = {

We report on the occurrence and properties of photonic surface states in fcc crystals of metallic nanoshells, by means of full-electrodynamic calculations using the layer-multiple-scattering method, properly extended. Detailed dispersion diagrams of the surface states associated with the (001) and (111) surfaces are calculated for such semi-infinite crystals and corresponding finite slabs, and convergence by increasing the slab thickness is discussed. It is shown that these states can be tuned over a broad frequency range by varying the shell thickness and can be characterized, along high-symmetry directions, according to their symmetry. Absorption in the metallic material limits the propagation length which can, however, be as long as several tens of lattice constants for low-loss metals and relatively broad bands.

}, author = {C. Tserkezis and N. Stefanou and G. Gantzounis and N. Papanikolaou} }