Theoretical (dashed line) and experimental (solid line) reflectivity spectra for structures with the same OT. The PBG generated using the (a) sinusoidal, (b) Gaussian, and (c) Bragg profiles for 8°. The corresponding reflectivity spectra at 68° are shown in panels (d), (e), and (f), respectively. The overlapping of the experimental PBG between 8° and 68° is shown as a gray band (taken for the reflectance more than or equal to 90%).
Ariza-Flores et al. Nanoscale Research Letters 2012 7:391 doi:10.1186/1556-276X-7-391