Modified Finite-Difference Frequency-Domain Method and Its Applications
Date Issued
2006
Date
2006
Author(s)
Hsieh, Chung-Han
DOI
zh-TW
Abstract
In this thesis, we propose a modified finite-difference frequency-domain method, by taking account of the boundary condition at the interface of different media. We also extend further the formulas to overcome the numerical difficulty of a corner problem where different media are included around the corner. We use the method to simulate the extraordinary transmission phenomenon of periodic metallic structures at long wavelength and discuss its relation to surface plasmons, and other resonant modes of structure. We propose the concept of an optical switch by combining the properties of liquid crystal and the extraordinary transmission phenomenon, which may be useful for display applications. Finally, we also investigate the propagation characteristics of some waveguides formed by defects in metallic photonic crystals. The numerical simulation may help us understand the optical properties of periodic metallic structures.
Subjects
頻域有限差分法
FDFD
Type
thesis
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