Patent ID: 7711228
Filing Date: 2010-05-04
Classification: B82Y,G02B

Abstract:
1. A two-dimensional photonic crystal having a slab-shaped body with a periodic arrangement of modified refractive index areas, which are identically shaped and whose refractive index is different from that of the body, which is characterized in that: a pattern of lattice points at which the modified refractive index areas are located is 6 mm-symmetrical; and a cross-section of the modified refractive index areas on a plane parallel to the body has a 3 m-symmetrical shape, and both of upper and lower sides of the modified refractive index areas are closed by closing members having a same refractive index as that of the body, wherein the closing members are plate-shaped or film-shaped and have a thickness thinner than a thickness of the body.