Electromagnetic Scattering and Field Enhancement byCoupled Metal Nanostructures

By numerical simulations, the influence of variousparameters including inter particle distance, polarizationand dielectric properties of the surrounding medium on the scattering of light and field enhancementof metalnanostructures were calculated. Dimer of silver nanoparticles, optical scattering spectra, the extremely large fieldenhancement and the mechanisms of nanostructures surface scattering were studied. In addition for study the effect ofcomposition a bimetallic dimer composed of a silver and a gold nanoparticles was studied. Finally unique adjusting ofthe plasmon resonance properties of metallic nanoparticles was emphasized.

کلیدواژه ها:

Numerical simulations ، Metallic nanoparticles ، Scattering ، Plasmon resonance