[20a-A101-1~11] 3.10 Photonic structures and phenomena (formerly 3.11)

▲ [20a-A101-11] Transmission via 90-degree Sharp Bends in Square-lattice Photonic-Crystal Waveguides with Glide Symmetry

〇(D)Wei Dai¹, Taiki Yoda², Yuto Moritake¹, Masaya Notomi^1,2,3 (1.Tokyo Tech, 2.NTT BRL, 3.NTT NPC)

Keywords:photonic crystal waveguide, glide symmetry

In periodically modified waveguides, glide-symmetry guarantees band degeneracy at the Brillouin zone edge. Here, we demonstrate that in glide-symmetric square-lattice photonic-crystal waveguides, such degeneracy also marks the division between high and low transmission via 90-degree sharp bends.