Photonic band structures corresponding to a square lattice of cylindrical air holes in a Si matrix. The ratios r/a and h/a were set as 0.38 and 0.4, respectively; the parameters correspond to a fluence of 5 × 1010/cm and a current density of 300 mA/cm2, ϵ = 11.56 being the dielectric constant of Si. (a) Slabs bands with even symmetry with respect to the z-plane (TE-like). (b) Slabs bands with odd symmetry with respect to the z-plane (TM-like).
Recio-Sánchez et al. Nanoscale Research Letters 2012 7:449 doi:10.1186/1556-276X-7-449