Surface Plasmons of Metal Nanostructure Arrays: From Nanoengineering to Active Plasmonics

摘要

We developed cost-effective and high-throughput techniques to fabricate metal nanostructure arrays of various geometries on solid substrates. Surface plasmons of these nanostructure arrays were investigated both experimentally and theoretically. We systematically studied the effects of different parameters on the localized surface plasmon resonance of the nanostructure arrays. We further developed a few approaches to tailor surface plasmons for different applications. As an example of the applications of these nanostructure arrays, we demonstrated all-optical plasmonic switches/modulators based on long-range ordered Au nanodisk arrays and photoresponsive liquid crystals. The advantages of such arrays include low-cost, high-throughput, and tailorable plasmonic properties. These arrays can serve as a platform that will stimulate further progress in both fundamental research and engineering applications of plasmonics.