Optical device and method for producing photonic crystal

摘要

An optical device includes: a complex photonic crystal in which a plurality of materials with different refractive indices are placed periodically, whereby a plurality of photonic crystals with a periodic refractive index distribution are arranged in a column in a direction of a common primitive lattice vector; an ingoing optical waveguide for allowing light to be incident upon the complex photonic crystal; and an outgoing optical waveguide for receiving light output from the complex photonic crystal.