| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-dimensional photonic crystal surface-emitting laser capable of vertical emission of a laser beam with a simple structure, in a non-radiative resonator structure, e.g., an M point resonator.SOLUTION: A two-dimensional photonic crystal surface-emitting laser includes a photonic crystal layer 12, and lattice points (12A, 12B) for forming resonance state arranged periodically in the photonic crystal layer, and diffracting the light wave at the band end of the photonic crystal layer in the plane thereof, and in a direction perpendicular to the plane of the photonic crystal layer. The lattice points for forming resonance state have two kinds of lattice point, i.e., a first lattice point and a second lattice point, and adjacent first lattice point 12A and second lattice point 12B have shapes different from each other. |
