Ministop bands in single-defect photonic crystal waveguides
Ministop bands in single-defect photonic crystal waveguides
We numerically study single-defect photonic crystal waveguides obtained from a triangular lattice of air holes in a dielectric background. It is found that, for medium-high air filling ratios, the transmission has very small values in narrow frequency regions lying inside the photonic band gap-the so-called ministop bands. Two types of …