Surfaces, films, and multilayers for compact nonlinear plasmonics

TitleSurfaces, films, and multilayers for compact nonlinear plasmonics
Publication TypeJournal Article
Year of Publication2013
AuthorsX. Liu, A. Rose, E. Poutrina, C. Ciracì, S. Larouche, D.R. Smith
JournalJournal of the Optical Society of America B
Date Published2013

Nonlinear plasmonic devices have received much theoretical and experimental attention for their potential in compact, ultrafast all-optical applications. In particular, metals possess relatively large nonlinear susceptibilities and can enhance such processes further through massive field localization in sub-wavelength regions. However, the widespread use of metals in optics is hampered by the intrinsic losses and short propagation lengths of surface plasmons. These competing effects result in a rich and complex variety of dynamics even in simple plasmonic systems. In an attempt to fill up any possible gap, we present a step-by-step analysis of four-wave mixing (FWM) in one-dimensional stacks of metallo-dielectric structures, pointing out various channels of plasmonic and Fabry-Perot enhancement. We start from the derivation of oblique incidence FWM at a single interface and then extend these expressions into a transfer-matrix-based formalism to quantitatively study films and multilayer geometries. Throughout our analysis, we consider typical examples, such as signle silver interface, a thin silver film, and Fabry-Perot multilayers. In this way, we offer an intuitive view of the surprising rich dynamics supported by even the simplest of nonlinear plasmonic systems.

Short TitleJ. Opt. Soc. Am. B