Surface waves in photonic crystal slabs
  Photonic crystals with a finite size can support surface modes when appropriately terminated. We calculate the dispersion curves of surface modes for different terminations using the plane wave expansion method. These non-radiative surface modes can be excited with the help of attenuated total reflection technique. We did experiments and simulations to trace the surface band curve, both in good agreement with the numerical calculations. 
Bingnan Wang, Weitao Dai, Anan Fang, Lei Zhang, Gary Tuttle, Thomas   Koschny, Costas M. Soukoulis