| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an easy-to-produce three-dimensional photonic crystal that has a satisfactory complete photonic bandgap over a wide wavelength range. <P>SOLUTION: The three-dimensional photonic crystal is composed of a three-dimensional periodic arrangement of structures of a first medium, and a second medium having a lower refractive index than the first medium. First and third layers in which the structures extend in a first direction and second and fourth layers in which the structures extend in a second direction are laminated. The structures of each layer have a flat surface as one end surface of lamination, a first structural part having a first width and a first height, a second structural part having a second width and a second height greater than the first width and the first height respectively, and a third structural part having a continuously or stepwise varying width and height. The flat surface of the first structural part of one of two adjacent layers is in contact with the surface of the second structural part of the other layer opposite to the flat surface. <P>COPYRIGHT: (C)2009,JPO&INPIT |
