Tamm states in one-dimensional photonic crystals containing left-handed materials
- 作者：Abdolrahman Namdar
- 关键词：Tamm states ; Photonic crystals ; Metamaterials
- 刊名：Optics Communications
- 出版年：2007
- 期刊代码：50_00304018
- 类别：ph
- 出版时间：1 October 2007
- 卷：278
- 期：1
- 页码：194-198
- 文件大小：214 K
摘要
We present a theoretical study of electromagnetic surface waves localized at an interface separating a conventional uniform medium and a semi-infinite one-dimensional photonic crystal made of alternate left-handed metamaterial and right-handed material, which we refer to as left-handed photonic crystal. We find unusual type of surface mode’s structure, the so-called surface Tamm states and demonstrate that the presence of metamaterial in the photonic crystal structure allows for a flexible control of the dispersion properties of surface states, and can support the Tamm states with a backward energy flow and a vortex-like structure.