Article ID Journal Published Year Pages File Type
1538013 Optics Communications 2011 6 Pages PDF
Abstract

The scattering properties of a metallic nano-spheroid under the illumination of different polarized light waves are investigated using 3D boundary element method. The influences of different geometrical sizes of the nano-spheroid and incident directions of the illuminating light wave on the scattering spectrum are studied for different incident polarized light waves. The results show that the metallic nano-spheroid has two intrinsic resonant modes, corresponding to different polarization states and resonant wavelengths. The scattering enhancement, the resonant wavelength, and the location of the enhanced optical field are strongly dependent on the polarization properties of the illuminating light waves, and they can be modulated by appropriately choosing the polarization directions of the incident light wave.

Research highlights► Two intrinsic resonant modes can be excited for the metallic nano-spheroid. ► Scattering spectrum can be modulated by the polarization states. ► Localized enhanced optical field distributions are investigated.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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