Patent ID: 6738551
Filing Date: 2004-05-18
Classification: B82Y,G02B

Abstract:
A two-dimensional photonic crystal comprising:a two-dimensional photonic crystal structure based on a slab formed of a material having a higher refractive index than air, in which a material having a lower refractive index than said slab material is periodically arrayed into said slab to provide a refractive index distribution; a photonic crystal waveguide created by forming a line defect in the periodic array of photonic crystal, the line defect functioning as a waveguide; and at least one point defect disposed adjacent to said photonic crystal waveguide to act as a disorder in the periodic array of photonic crystal, wherein said at least one point defect functions as a light or electromagnetic radiation outlet/inlet port for trapping light or electromagnetic radiation of a selected wavelength among light or electromagnetic radiation propagating through the waveguide and radiating said trapped light or electromagnetic radiation along a direction that intersects said slab, or trapping light or electromagnetic radiation of a selected wavelength received along said direction that intersects said slab from outside the waveguide and introducing said trapped light or electromagnetic radiation into the waveguide.