Instead, this chapter focuses on those aspects that come into the picture when the structure is plasmonic.Īfter the section on techniques and tools, this chapter will focus on the performance of these techniques and tools for plasmonic structures.
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These techniques will not be derived or explained here in full detail. This means that in this chapter the major numerical techniques can be overviewed in a general sense, referring to standard literature. By far most plasmonic topologies reported in literature have been analyzed / designed with the well-known numerical techniques implemented within in-house developed or commercial software packages. The microwave range, in most cases no special modeling techniques have to be used. Although this frequency range is totally different from the traditional range where computational tools have been developed, i.e. At near IR and optical frequencies, and beyond. The plasmonic structures targeted are structures in the order of magnitude of a wavelength at plasmonic frequencies, i.e. There are many challenges that still need to be faced and “missing links” that have to be solved. Plasmonics is a quite novel research field and the application of computational electromagnetics in plasmonics can be categorized as “very recent”. The situation is quite different in plasmonics. Whereas 30 years ago, the design of an antenna was based on simple analytical models, or trial and error strategies, nowadays, simulations seem to be as crucial to the design as real measurements. This has been especially true in the design of microwave and millimeter wave components and antennas. The rapidly growing computer capacity and calculation speeds make accurate solutions of very complex problems feasible. In electromagnetics, numerical techniques have been essential in the development of new technology in the last two decades.
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