Abstract:

In this talk, I discuss electric and magnetic resonances in a few stacks of nanostructured metamaterials. Firstly, I present the optical transmission through subwavelength nanoaperture arrays with periodic and fractal-like configurations, respectively, where both propagating surface plasmons and localized surface plasmons are excited and interfere with each other. In the second, I present that in an assembly of stacked metallic U-shaped resonators, pure magnetic and electric responses are respectively realized, and the magnetic and electric responses can be switched at the same frequency by changing the polarization of incident light. Thirdly, plasmonic antenna arrays and plasmonic waveguides are also discussed. The investigations provide flexibility in engineering surface-wave-based devices.
 
 
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