Near field optical properties of individual Ag nanowire dimers encapsulated by dielectric layers

摘要：

　　By finite element method (FEM),the near field optical properties of an individual Ag nanowire dimer encapsulated with nanometric dielectric layers were investigated.We demonstrated that the electromagnetic enhancement could be optimized by improving the substrates refractive index and the thickness,and gave the peak wavelength as a function of the two parameters separately.The results are important for further understanding surface-enhanced Raman Scattering (SERS) and have referential meaning for choosing the appropriate substrates in the application.

关键词： Surface-enhanced Raman Scattering (SERS) finite element method (FEM) individual Ag nanowire dimers surface plasmon (SP) electric field enhancement

作者: SongLin Jin ChaoLing Du DaNing Shi

作者单位: Nanjing University of Aeronautics and Astronautics, Nanjing 211100, PR China

会议类型: 国际会议

会议名称: the 2011 International Conference on Biotechnology, Chemical and Materials Engineering (2011生物,化学与材料工程国际会议(CBCME 2011))

会议地点: 昆明

会议语种:英文

页码: 193-196

在线出版日期: 2011-12-28（万方平台首次上网日期，不代表论文的发表时间）