Metallic nanowires for subwavelength waveguiding and nanophotonic devices  

作　　者：潘登 魏红 徐红星 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2013年第9期72-83,共12页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China (Grant No. 2009CB930700);the National Natural Science Foundation of China (Grant Nos. 11134013, 11227407 and 11004237);the Knowledge Innovation Project of Chinese Academy of Sciences (Grant No. KJCX2-EW-W04)

摘　　要：Plasmonics is a rapidly developing field concerning light manipulation at the nanoscale with many potential applica- tions, of which plasmonic circuits are promising for future information technology. Plasmonic waveguides are fundamental elements for constructing plasmonic integrated circuits. Among the proposed different plasmonic waveguides, metallic nanowires have drawn much attention due to the highly confined electromagnetic waves and relatively low propagation loss. Here we review the recent research progress in the waveguiding characteristics of metallic nanowires and nanowire-based nanophotonic devices. Plasmon modes of both cylindrical and pentagonal metallic nanowires with and without substrate are discussed. Typical methods for exciting and detecting the plasmons in metallic nanowires are briefly summarized. Be- cause of the multimode characteristic, the plasmon propagation and emission in the nanowire have many unique properties, benefiting the design of plasmonic devices. A few nanowire-based devices are highlighted, including quarter-wave plate, Fabry-Pdrot resonator, router and logic gates.Plasmonics is a rapidly developing field concerning light manipulation at the nanoscale with many potential applica- tions, of which plasmonic circuits are promising for future information technology. Plasmonic waveguides are fundamental elements for constructing plasmonic integrated circuits. Among the proposed different plasmonic waveguides, metallic nanowires have drawn much attention due to the highly confined electromagnetic waves and relatively low propagation loss. Here we review the recent research progress in the waveguiding characteristics of metallic nanowires and nanowire-based nanophotonic devices. Plasmon modes of both cylindrical and pentagonal metallic nanowires with and without substrate are discussed. Typical methods for exciting and detecting the plasmons in metallic nanowires are briefly summarized. Be- cause of the multimode characteristic, the plasmon propagation and emission in the nanowire have many unique properties, benefiting the design of plasmonic devices. A few nanowire-based devices are highlighted, including quarter-wave plate, Fabry-Pdrot resonator, router and logic gates.

关 键 词：surface plasmons WAVEGUIDE CIRCUIT NANOWIRE 

分 类 号：TN252[电子电信—物理电子学] TB383.1[一般工业技术—材料科学与工程]