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Waveguide and Radiation Applications of Modes in Linear Chains of Plasmonic Nanospheres
Abstract
We apply an analytical procedure that uses a periodic Green's function based on the Ewald representation to compute the modes in a linear chain of plasmonic nanospheres, including the case of complex modal wave numbers. We analyze both transverse and longitudinal polarizations (with respect to the array axis) of the nanospheres' electric dipole moments. Among all the modes, we discuss those excitable and that can be used for wave guidance through bound modes or for radiation through leaky modes. © 2013 IEICE.
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