Resonances of Modified Bowtie Nanoparticles with Higher Field Enhancements

In this paper, we present an analysis of the resonant behavior of modified bowtie nanoparticles with polynomial sides. The method of moments is used to solve numerically the scattering problem. With this model, we investigate the variation of the spectral response and near field distribution in function of the length and polynomial order of the nanoparticles. The results show that these particles possess smaller number of resonances in the analyzed wavelength range and their resonant wavelength, near field enhancement and confinement are higher than those of the conventional bowtie particle with linear sides.