Mechanism of photonic crystal and waveguide effects in ZnO nanorods

Two different shaped ZnO nanorods were grown on ZnO buffered Al 2 O 3 substrate by laser interference lithography and hydrothermal method. The light waveguide within ZnO nano rod and photonic crystal effects in arrayed ZnO nanorods was calculated by 3D-finite dimension time domain(3D-FDTD) programs. The ZnO photonic crystal effect and number of modes of ZnO nanorod was governed by arrangement and shape of ZnO nanorod, respectively.