Patent ID: 7450810
Filing Date: 2008-11-11
Classification: B82Y,G02B

Abstract:
1. In a two-dimensional photonic crystal configured by an arrangement, in a regular section of a two-dimensional lattice of points defined in a slab, of low-refractive-index substances having a small refractive index relative to the slab and being of predetermined identical dimension and shape, a non-graded cavity made from a point defect within the two-dimensional photonic crystal, wherein: said point defect contains among said lattice points a plurality of three or more neighboring one another, and in said plurality of three or more lattice points said low-refractive-index substances are missing from said arrangement; and in said arrangement the two of said low-refractive-index substances being arranged to correspond to those of said lattice points being at the terminal ends of said point defect, and only those two of said low-refractive-index substances, are dimensionally altered from said predetermined dimension.