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研究生： 翁茂東
論文名稱： 超穎材料之光子晶體電磁特性研究
指導教授： 吳謙讓
學位類別： 碩士
Master
系所名稱： 光電工程研究所
Graduate Institute of Electro-Optical Engineering
論文出版年： 2009
畢業學年度： 97
語文別： 英文
論文頁數： 47
中文關鍵詞： 光子晶體 、左手材料
論文種類： 學術論文
相關次數： 點閱：211  下載：0 
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    • Abstract

    Photonic crystals (PCs) are periodic structures made of materials with different refractive indices. With their special electromagnetic properties, researches on PCs continue to be hot in recent years. In this thesis, we study the electromagnetic and optical properties of PCs by using the Abeles theory.
    The thesis consists of six chapters. The first chapter is to give a brief review of PCs and Left Handed Materials (LHMs). The second introduce the Abeles theory which will be used for our calculation. Some topics under study are given in chapter 3, 4 and 5, respectively. The conclusion is then summarized in chapter 6.
    In chapter 3, we analyze the reflectance and transmittance in a layered structure containing DPS and DNG media, and we found that the losses play an important role about it. In chapter 4, we show our some novel structures of chirped DBR, which can enhance reflection bandwidth in different ways. In chapter 5 we have constructed a multilayered spatial filter with an ultralow permittivity material and a typical dielectric, it has matched impedance.

    Abstract

    Photonic crystals (PCs) are periodic structures made of materials with different refractive indices. With their special electromagnetic properties, researches on PCs continue to be hot in recent years. In this thesis, we study the electromagnetic and optical properties of PCs by using the Abeles theory.
    The thesis consists of six chapters. The first chapter is to give a brief review of PCs and Left Handed Materials (LHMs). The second introduce the Abeles theory which will be used for our calculation. Some topics under study are given in chapter 3, 4 and 5, respectively. The conclusion is then summarized in chapter 6.
    In chapter 3, we analyze the reflectance and transmittance in a layered structure containing DPS and DNG media, and we found that the losses play an important role about it. In chapter 4, we show our some novel structures of chirped DBR, which can enhance reflection bandwidth in different ways. In chapter 5 we have constructed a multilayered spatial filter with an ultralow permittivity material and a typical dielectric, it has matched impedance.

    Contents Abstract………………………………………………………….i Acknowledgement……………………………………………...ii Contents………………………………………………………..iii Chapter 1 Introduction………………………………………1 1-1 History Background…………………………………………1 1-2 Motivation…………………………………………………...3 1-3 Overview…………………………………………………….4 Chapter 2 Theoretical Methods……………………………..5 2-1 Characteristic Matrix ………………………………………5 2-2 A Homogeneous Dielectric Film…………………………...9 2-3 A Stratified Medium as a Pile of Thin Homogeneous Dielectric Films…………………………………………..11 2-4 The Reflection and Transmission Coefficients…………...14 2-5 A Homogeneous Dielectric Film with Finite Thickness….16 2-6 Periodically Stratified Medium…………………………...18 Chapter 3 A DBR Containing DPS and DNG Media……...23 3-1 Introduction………………………………………………23 3-2 Numerical Results………………………………………..24 3-3 Conclusions……………………………………………....27 Chapter 4 Enhancement of Bandwidth in a Chirped Quarter-Wave Dielectric Mirror………………..28 4-1 Introduction………………………………………………28 4-2 Theory…………………………………………………….29 4-3 Numerical Results and Discussion………………………..31 4-4 Summary………………………………………………….36 Chapter 5 Multilayered Structure Containing a Zero-Permittivity Material……………………...38 5-1 Introduction……………………………………………...38 5-2 Design and Analysis……………………………………..39 5-3 Conclusion……………………………………………….42 Chapter 6 Conclusions……………………………………..43 References……………………………………………………..45 Publication Lists………………………………………………..v

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