Engineering the Dispersive Properties for Meta-Material Crystals

Seminar
Thursday, April 26, 2012
7:00 PM
Free and open to the public

We present an approach for designing negative index meta-material crystals. The class of metamaterial crystals discussed here is envisioned for optical applications and consists of high dielectric inclusions covered with metallic coatings. In this presentation we apply a new type of convergent power series expansion for electromagnetic fields inside meta-material crystals. The leading order theory provides a basis for engineering negative index frequency ranges across which the phase velocity of propagating waves oppose the direction of electromagnetic powerflow. We will discuss the effects of loss and crystal geometry on the frequency ranges over which negative index phenomena occur.

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Speaker

Robert Lipton

Professor
LSU