December 4th, 2014Research highlightsAndrea Fratalocchi 0 Comments

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We investigated the field enhancement properties of plasmonic nanoparticles characterized by a random surface corrugation. We model realistic deformations from SEM images of fabricated samples. By employing Finite-Difference-Time-Domain (FDTD) simulations, we studied the interplay between Surface Plasmon Polaritons (SPP) and randomness. We show that surface roughness plays a crucial role in enhancing the electromagnetic energy in the near field, thus opening new perspectives in the realization of ultra-focusing nanoplasmonic devices.

By discussing this research, PhD Juan Totero won the best presentation Award at the EPL conference Frontier in Modern Optics in 2014. Read more here.

This technology is now under patent pending:

“Analytic Device Including Nanostructures”, US Patent App. No. 61/920,725, Inventors: Enzo di Fabrizio, A. Fratalocchi, J. Totero, M. G. Colluccio, M. P. Candeloro.