Near Field Optical Properties of Individual Ag Nanowire Dimers Encapsulated by Dielectric Layers

Song Lin Jin; Chao Ling Du; Da Ning Shi

doi:10.4028/www.scientific.net/AMR.393-395.193

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395Near Field Optical Properties of Individual Ag...

Near Field Optical Properties of Individual Ag Nanowire Dimers Encapsulated by Dielectric Layers

Abstract:

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.

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Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

193-196

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.193

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Online since:

November 2011

Authors:

Song Lin Jin, Chao Ling Du, Da Ning Shi

Keywords:

Electric Field Enhancement, Finite Element Method (FEM), Individual Ag Nanowire Dimers, Surface Plasmon (SP), Surface-Enhanced Raman Scattering (SERS)

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