4 papers
Multipolar interference for non-reciprocal nonlinear generation
Ekaterina Poutrina, Augustine Urbas
We show that nonlinear multipolar interference allows achieving not only unidirectional, but also non-reciprocal nonlinear generation from a nanoelement, with the direction of the…
Origin of second-harmonic generation enhancement in optical split-ring resonators
Cristian Ciracì, Ekaterina Poutrina, Michael Scalora +1
We present a study of the second-order nonlinear optical properties of metal-based metamaterials. A hydrodynamic model for electronic response is used, in which nonlinear surface c…
Enhancing Four-Wave-Mixing Processes by Nanowire Arrays Coupled to a Gold Film
Ekaterina Poutrina, Cristian Ciraci, Daniel J. Gauthier +1
We consider the process of four-wave mixing in an array of gold nanowires strongly coupled to a gold film. Using full-wave simulations, we perform a quantitative comparison of the…
Analysis of Nonlinear Electromagnetic Metamaterials
Ekaterina Poutrina, Da Huang, David R. Smith
We analyze the properties of a nonlinear metamaterial formed by integrating nonlinear components or materials into the capacitive regions of metamaterial elements. A straightforwar…