Coupled-wave analysis of optical diffraction for periodic gratings
Date Issued
2007
Date
2007
Author(s)
Wang, Tsung-You
DOI
zh-TW
Abstract
The purpose of this research is to study the diffraction efficiency of periodic gratings. We derive the coupled wave equations for TE and TM polarization using rigorous coupled wave analysis. Then, the diffraction characteristic of the periodic gratings is investigated. The coupled wave equations are solved by two numerical methods, including full matrix method and transfer matrix method. The effect of grating period, grating depth, duty cycle, incident angle and the permittivity in grating region on the grating diffraction efficiency are investigated. Finally, we study the accuracy and the stability of the computation on diffraction efficiency using both of the numerical methods.
Subjects
週期性光柵
繞射效率
耦合波分析
periodic gratings
diffraction efficiency
coupled-wave analysis
Type
thesis
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