Basic properties of trapezoidal channel plasmon polariton subwavelength waveguides  

作　　者：MA Jun-xian FANG Yu CHEN Bi-bo TAN Rui-hu LUO Xian-gang 

机构地区：[1]Advanced Technology Research Center, Shenzhen university, Shenzhen 518060, China

出　　处：《中国光学与应用光学》2010年第1期89-92,共4页Chinese Optics and Applied Optics Abstracts

基　　金：supported by the Major State Basic Research and Development Program of China （973 Program） （2006CB302900） ; National Nature Science Foundation of China（ 60772026）.

摘　　要：An air channel inside a silver metal film is usually used as a typical Channel Plasmon Polariton(CPP) waveguide. This paper presents research on the basic properties of this waveguide using the Finite Difference Time Domain(FDTD) method. The relationship between transmission power and structure of the waveguide is investigated. The simulation results show that the subwavelength trapezoidal CPP waveguide is superior to the rectangle CPP waveguide for controlling SPP radiation loss and enhancing the transmitted power. As a result, if the rectangle CPP waveguide is replaced by a trapezoidal CPP waveguide in certain integrated optical devices, their performance may be improved.An air channel inside a silver metal film is usually used as a typical Channel Plasmon Polariton （CPP） waveguide. This paper presents research on the basic properties of this waveguide using the Finite Difference Time Domain（FDTD） method. The relationship between transmission power and structure of the waveguide is investigated. The simulation results show that the subwavelength trapezoidal CPP waveguide is superior to the rectangle CPP waveguide for controlling SPP radiation loss and enhancing the transmitted power. As a result, if the rectangle CPP waveguide is replaced by a trapezoidal CPP waveguide in certain integrated optical devices, their performance may be improved.

关 键 词：金属薄膜 发射功率 波导技术 光学器件 

分 类 号：O484.1[理学—固体物理] TN929.53[理学—物理]