Abstract
The local electric field components in the dielectric wall with a long gold nanowire in its core are calculated based on quasi-static theory. The calculated results show that the complete polarized incident light does not only stimulate same directional complete polarized local electric field. The same directional polarized electric field only locates close to the poles of the core wire and is parallel or perpendicular to the polarized direction of the incident radiation. On the other hand, incident light also stimulates perpendicular directional polarization, which densely locates close to the poles of the core wire in the direction with an included angle π/4 or 3π/4 makes with polarization direction of incident light. Furthermore, local electric field components in the wall also depend on the dielectric constant of dielectric wall and surrounding medium. When dielectric constant of the wall is less than that of surrounding, the areas of perpendicular directional polarized local field in the wall reduce and shift greatly. At the same time, more parallel directional polarized local field focus in the poles of the wall along the incident polarization.
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78.67.Bf; 73.20.Mf; 36.40.Gk; 78.66.Bz; 73.20.Mf
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Zhu, J. Polarization direction characters of local electric field around dielectric coated gold nanowire. Appl. Phys. A 88, 673–677 (2007). https://doi.org/10.1007/s00339-007-4026-5
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DOI: https://doi.org/10.1007/s00339-007-4026-5