We consider gold and silver at optical wavelengths along with three “standard” nanoplasmonic structures: a metal sphere, a metal dipole antenna and a metal bowtie antenna – for the first structure comparisons with the analytical extinction, scattering, and absorption coefficients based on Mie theory are possible. The availability of a high-performance computing system (a massively parallel IBM Blue Gene/Q) allows us to do this for the first time. Although the method may be well-established in other areas of electromagnetics, the peculiarities of nanoplasmonic problems are such that a targeted study on convergence and accuracy is required. However, a comprehensive study on the convergence and accuracy of the method for nanoplasmonic structures has yet to be reported. Use of the Finite-Difference Time-Domain (FDTD) method to model nanoplasmonic structures continues to rise – more than 2700 papers have been published in 2014 on FDTD simulations of surface plasmons. Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.Use these formats for best results: Smith or J Smith.For best results, use the separate Authors field to search for author names.Use quotation marks " " around specific phrases where you want the entire phrase only.Question mark (?) - Example: "gr?y" retrieves documents containing "grey" or "gray".Asterisk ( * ) - Example: "elect*" retrieves documents containing "electron," "electronic," and "electricity".Improve efficiency in your search by using wildcards.Example: (photons AND downconversion) - pump.Example: (diode OR solid-state) AND laser.
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