engleski

Plasmonic Materials in Optical Multilayers

Typical representatives of plasmonic materials known in the form of thin fi lms are metal island fi lms of noble metals (gold, silver, copper). They are built as an almost planar arrangement of particles on the substrate. Due its specifi c resonant absorptive properties, caused by excitation of surface plasmons, they have recently triggered increased interest as novel constituents of specifi c optical multilayer designs. Their optical properties strongly depend on the embedding medium ; therefore the characterization of their properties is quite a challenging problem. Their morphology and optical properties are thickness dependent, which introduces additional complications in the design process. Finally, their optical properties depend on the coating technology applied which also has to be taken into consideration. Optical coaters prefer optical materials that have stable optical properties and all the above mentioned properties of plasmonic materials are not considered as preferable features. A review of the current state of the art, with practical examples for some special coatings applications will be presented. Feasibility to make sophisticated multilayers including plasmonic materials will be discussed. Finally, possible future applications of plasmonic materials in optical multilayers will be suggested.

plasmonic materials; optical multilayers

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