由於負折射率觀念近幾年來如雨後春筍般的出現,論文數目也大量的產生。為了使大家更了解此觀念,此論文整理並闡述負折射率的來源過程。由一開始製造負值介電常數與導磁係數的結構,接著導入微波波段的負折射率材質結構,到現在的光學波段的負折射率材質結構,以及超越繞射極限的超級透鏡,都是利用此基本觀念所孕育而產生。並利用Matlab軟體來找出微波波段中介質的正負值。 最後利用兩組透鏡組Cooke Triplet與Double Gauss 作為設計藍圖,把負折射率透鏡與一般的傳統透鏡作為幾何光學上的比較。希望加入負折射率透鏡後,配合負折射率的完美成像特性,能使成像效果更好,就並其討論彼此之間的差異。
As we know, the research of negative refractive index had turned up in the past several years. Therefore, a lot of papers are presented in the journals and in conferences. In order to make the negative index well known, this paper review and state its origin and development. In the beginning, we present the structures of the negative permittivity and permeability, then the negative index in microwave frequency and optical frequency and the super lens with negative index. Moreover, these negative structures are associating with the structures of negative permittivity and permeability. Furthermore, we use the Matlab software to present what the value of the negative index in the microwave frequency. Finally, we use Cooke Triplet and Double Gauss to be our design models. The negative index lens and traditional lens are compared in the geometric optics. By using the optical software, Zemax, we analyze the performance of negative lens and traditional lens, and the differences between them are compared.