Abstract
It is demonstrated that the newly proposed nano-sinusoid shape has more resonance wavelength tunability than that other sharp-tip nano-particles such as nano-triangles and nano-diamonds. It is also show that an array of nano-sinusoids provides more enhancement at hot spots in comparison to other examined nano-particle shapes. This enhancement is analytically quantified using the coupling constant values used in the electrostatic eigenmode method for analytically solving Maxwell's equations for the nano-plasmonic devices. In addition, investigating LSPR spectrum of 2D arrays of NPs, demonstrates existence of enhanced surface electric fields on hot spots of the outer rows of the array.
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