| 摘要 |
PROBLEM TO BE SOLVED: To obtain a three-dimensional photonic crystal that has a complete photonic band gap in a wide wavelength region and that can be easily produced. SOLUTION: The three-dimensional photonic crystal in which a plurality of layers including a periodic-refractive-index structure are periodically stacked includes: a first layer having a periodic structure having holes composed of a second medium provided at lattice points of a rectangular lattice 1 and a rectangular lattice 2, and having the region other than holes filled with a first medium; a second layer having a periodic structure of a columnar structure composed of a third medium with an axis in the stacked direction and having the region other than the columnar structure filled with the second medium at lattice points of a face-centered rectangular lattice; a third layer having a periodic structure the same as that of the first layer and disposed at a shifted position; and a fourth layer having a periodic structure the same as that of the second layer. The three-dimensional photonic crystal is characterized in that the first layer, the second layer, the third layer and the fourth layer are periodically stacked in the described order. COPYRIGHT: (C)2007,JPO&INPIT |
