| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
Two-dimensional periodical structure is modeled by the multilayer dielectric slab structure and the validity of the effective permittivity and verification of the scopes have been performed. The reflectance from the periodic structures is calculated by FDTD method. The effective permittivity of the dielectric slab is calculated by using the reflectance obtained by FDTD method.
At first, the reflectance from one-dimensional periodic structure was calculated by the FDTD method. Then, the effective permittivity of the equivalent dielectric slab was examined. The effective permittivity to the normalized frequency became discontinuous, and it turned out that the validity is narrow. In order to improve this discontinuous, the model which makes thickness of slab structure thin and it multilayers has been proposed. This proposal is working well to the structure presented in this research.
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