three-dimensional

Simulation of Metasurfaces Described by Generalized Sheet Transition Conditions Using Integral Equations

Sebastian Celis Sierra, Ph.D. Student, Electrical and Computer Engineering

Jul 23, 10:00 - 11:00

B3 L5 R5209

computational electromagnetics Metasurfaces three-dimensional

This dissertation details the development of several novel integral equation solvers that incorporate Generalized Sheet Transition Conditions (GSTCs) to enable the accurate and computationally efficient simulation of complex, multiscale metasurfaces in three-dimensional problems.

Ultrafast nonlinear response of gold gyroid three-dimensional metamaterials

1 min read · Sat, Apr 26 2014

three-dimensional gyroidal metamaterials nonlinear optical response Circuits

Petros Farah, et al., "Ultrafast nonlinear response of gold gyroid three-dimensional metamaterials." Physical Review Applied 2, (4), 2014, 044002. We explore the nonlinear optical response of three-dimensional gyroidal metamaterials, which show greater than tenfold enhancements compared to all other metallic nanomaterials as well as bulk gold. A simple analytical model for this metamaterial response shows how the reflectivity spectrum scales with the metal fill fraction and the refractive index of the material that the metallic nanostructure is embedded in. The ultrafast response arising from