| 研究生: |
丁啟倫 Ting, Chi-Lun |
|---|---|
| 論文名稱: |
運用二維時域有限差分法分析液晶元件光學性質 Optical simulation of liquid crystal devices using finite-difference time-domain method |
| 指導教授: |
傅永貴
Fuh, Y.G. Andy |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 光電科學與工程研究所 Institute of Electro-Optical Science and Engineering |
| 論文出版年: | 2005 |
| 畢業學年度: | 93 |
| 語文別: | 中文 |
| 論文頁數: | 171 |
| 中文關鍵詞: | 時域有限差分法 、液晶 、光學 、模擬 |
| 外文關鍵詞: | cholesteric liquid crystal, FDTD, optical simulation |
| 相關次數: | 點閱:132 下載:5 |
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中文摘要
本論文詳細說明了「時域有限差分法 (FDTD:Finite-Difference Time-Domain Method)」的理論推導過程,以及實際應用此種新型態光學模擬工具來對液晶光學薄膜求解所需的各項技術,包括完美匹配層(Perfect Matching Layer)吸收邊界、週期性邊界條件(Periodic Boundary Condition)、近場轉遠場,以及各種不同波源的寫法。
應用面上,我們首先運用吾人所發展的FDTD模擬程式,對一維的扭轉型向列相(TN)液晶盒的光學性質進行分析,以驗證程式的正確性,並深入探討一維膽固醇相液晶(CLC)盒的光學性質;最後則藉由二維結構的設計,改善了膽固醇相液晶的反射頻寬以及視角關係。
Abstract
In this thesis, we introduced the theorem of Finite-Difference Time-Domain (FDTD) Method, and the techniques for simulating the optical properties of liquid crystal films, such as Perfect Matching Layer、Periodic Boundary Condition、Near- to Far-field Transformation, and sorts of light sources.
In application, we firstly verified the validity of our FDTD program by analyzing the optical characteristics of one-dimensional Twist-Nematic (TN) cell. It was then used to discuss the Bragg reflection properties of cholesteric liquid crystal (CLC) textures. We successfully broadened the reflection bandwidth and the viewing angle of CLC by designing the two-dimensional structures of CLC.
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