本論文使用有限差分時域法模擬透過幾何結構以及入射圓偏振光的旋向所決定的合成表面電漿子漩渦。我們以阿基米德螺旋為雛形，設計出六種結構，它們會產生不同的表面電漿子漩渦能量分布。此外，我們的解析解相當地符合數值模擬的結果。我們的設計可以自由地改變電漿子漩渦的能量分布，而且這個技術可能在光捕捉上會有有趣的應用。
在實驗方面，我們利用熱蒸鍍與聚焦離子束來製造元件。光學測量系統是用收集式近場光學掃描顯微鏡，這個系統包含商業的近場光學掃描顯微鏡與正向入射架構以及自己製作的沒有鍍金屬的探針。藉由比較實驗與模擬的結果，我們驗證了實驗的測量結果是表面電漿波場強而不是梯度場強。

摘要 I
Abstract II
Acknowledgements III
Table of Contents V
List of Figures VII
Chapter 1 Introduction 12
Chapter 2 Basics Concept 14
2.1 Plasmonics 14
2.1.1 TE Mode 15
2.1.2 TM Mode 16
2.2 Optical Vortex 17
Chaper 3 Surface Plasmonic Vortex Devices and Simulation 19
3.1 Generation of Surface Plasmonic Wave 20
3.2 Concept of Surface Plasmonic Vortex Design 22
3.2.1 Archimedes Spiral 22
3.2.2 Nano-focusing 23
3.2.3 Surface Plasmonic Vortex 24
3.3 Simulation Method 27
3.3.1 Numerical Analysis 27
3.3.2 Analytical Analysis 28
3.4 Design Notion 31
3.5 Simulation Result 31
Chapter 4 Experiment Result 41
4.1 Device Fabrication 41
4.2 Preparation of Measurement 42
4.3 Non-coated Probe 44
4.4 Measurement Steps and Setup 45
4.5 Measurement Results 47
4.5.1 Entire PAS 47
4.5.2 3-slot PAS 50
4.5.3 5-slot PAS 52
Chapter 5 Conclusion and Outlook 55
Appendix 57
Convolution of Impulse Response and Near-field Intensity 57
Reference 63

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