Dispersion Engineering in Electromagnetic Meta-materials
Wednesday, April 18, 3:30PM – 5PM
We present an approach for designing meta-material crystals with novel electromagnetic properties. We focus on the computational design of double negative meta-materials that offer negative index behavior useful for novel applications ranging from cloaking to super lensing. The class of meta-material crystals discussed here are envisioned for optical applications and consist of high dielectric inclusions covered with metallic coatings.
In this presentation we introduce a new type of convergent power series expansion for electromagnetic fields inside meta-material crystals. The leading order theory provides a theoretical basis for engineering frequency ranges across which the phase velocity of propagating waves oppose the direction of electromagnetic power flow. Several examples are provided that illustrate the method.
Hosted by Ivo Babuska